# L_2010257EN.01023101.xml

| 30.9.2010 | EN | Official Journal of the European Union | L 257/231 |
| --- | --- | --- | --- |

30.9.2010

EN

Official Journal of the European Union

L 257/231

---

Only the original UN/ECE texts have legal effect under international public law. The status and date of entry into force of this Regulation should be checked in the latest version of the UN/ECE status document TRANS/WP.29/343, available at:

http://www.unece.org/trans/main/wp29/wp29wgs/wp29gen/wp29fdocstts.html

Regulation No 106 of the Economic Commission for Europe of the United Nations (UN/ECE) — Uniform provisions concerning the approval of pneumatic tyres for agricultural vehicles and their trailers

Incorporating all valid text up to:

Supplement 8 to the original version of the Regulation — Date of entry into force: 17 March 2010

CONTENTS

REGULATION

| 1. | Scope |
| --- | --- |

1.

| 2. | Definitions |
| --- | --- |

2.

| 3. | Markings |
| --- | --- |

3.

| 4. | Application for approval |
| --- | --- |

4.

| 5. | Approval |
| --- | --- |

5.

| 6. | Requirements |
| --- | --- |

6.

| 7. | Modification of tyre type and extension of approval |
| --- | --- |

7.

| 8. | Conformity of production |
| --- | --- |

8.

| 9. | Penalties for non-conformity of production |
| --- | --- |

9.

| 10. | Production definitely discontinued |
| --- | --- |

10.

| 11. | Names and addresses of technical services responsible for conducting approval tests, of test laboratories, and of administrative departments |
| --- | --- |

11.

ANNEXES

| Annex 1 — | Communication concerning the approval or extension or refusal or withdrawal of approval or production definitely discontinued of a type of pneumatic tyre for motor vehicles pursuant to Regulation No 106 |
| --- | --- |

Annex 1 —

| Annex 2 — | Arrangement of approval mark |
| --- | --- |

Annex 2 —

| Annex 3 — | Arrangement of tyre markings |
| --- | --- |

Annex 3 —

| Annex 4 — | List of load capacity indices (LI) and corresponding maximum mass to be carried (kg) |
| --- | --- |

Annex 4 —

| Annex 5 — | Theoretical rim, outer diameter and nominal section width of tyres of certain size designations |
| --- | --- |

Annex 5 —

| Annex 6 — | Test method for measuring tyre dimensions |
| --- | --- |

Annex 6 —

| Annex 7 — | Variation of load capacity with speed |
| --- | --- |

Annex 7 —

| Annex 8 — | Test procedure to assess tyre resistance to bursting |
| --- | --- |

Annex 8 —

| Annex 9 — | Load/speed test procedure |
| --- | --- |

Annex 9 —

| Annex 10 — | Tyre classification code |
| --- | --- |

Annex 10 —

| Annex 11 — | Example of the pictogram to be marked on both tyre sidewalls of the tyres to explicit the maximum inflation pressure not to be exceeded for bead seating during tyre mounting |
| --- | --- |

Annex 11 —

1.   SCOPE

This Regulation covers new pneumatic tyres designed primarily, but not only, for agricultural and forestry vehicles (power-driven vehicles in category T), agricultural machines (power-driven and trailed) and agricultural trailers, and identified by speed category symbols corresponding to speeds of 65 km/h (speed symbol ‘D’) and below.

It does not apply to tyre types designated primarily for other purposes, such as:

| (a) | Construction application (tyres marked ‘Industrial’ or ‘IND’ or ‘R4’ or ‘F3’); |
| --- | --- |

(a)

Construction application (tyres marked ‘Industrial’ or ‘IND’ or ‘R4’ or ‘F3’);

| (b) | Earth-moving equipment; |
| --- | --- |

(b)

Earth-moving equipment;

| (c) | Industrial and lift trucks. |
| --- | --- |

(c)

Industrial and lift trucks.

2.   DEFINITIONS

For the purposes of this Regulation:

| 2.1. | ‘Type of agricultural tyre’ means a category of tyres which do not differ in such essential respects as:






  2.1.1. | the manufacturer; |
| --- | --- | --- |

2.1.

‘Type of agricultural tyre’ means a category of tyres which do not differ in such essential respects as:

2.1.1.

the manufacturer;

| 2.1.2. | tyre-size designation; |
| --- | --- |

2.1.2.

tyre-size designation;

| 2.1.3. | category of use:






  (a) | Tractor — Steering wheel: |
| --- | --- | --- |

2.1.3.

category of use:

(a)

Tractor — Steering wheel:

| (b) | Tractor — Drive wheel — standard tread |
| --- | --- |

(b)

Tractor — Drive wheel — standard tread

| (c) | Tractor — Drive wheel — special tread |
| --- | --- |

(c)

Tractor — Drive wheel — special tread

| (d) | Implement — traction: |
| --- | --- |

(d)

Implement — traction:

| (e) | Implement — trailer; |
| --- | --- |

(e)

Implement — trailer;

| (f) | Implement — mixed applications; |
| --- | --- |

(f)

Implement — mixed applications;

| (g) | Forestry machines — standard tread; |
| --- | --- |

(g)

Forestry machines — standard tread;

| (h) | Forestry machines — special tread. |
| --- | --- |

(h)

Forestry machines — special tread.

| 2.1.4. | structure (diagonal (bias-ply), bias-belted, radial-ply); |
| --- | --- |

2.1.4.

structure (diagonal (bias-ply), bias-belted, radial-ply);

| 2.1.5. | speed category symbol; |
| --- | --- |

2.1.5.

speed category symbol;

| 2.1.6. | load capacity index; |
| --- | --- |

2.1.6.

load capacity index;

| 2.1.7. | tyre cross-section; |
| --- | --- |

2.1.7.

tyre cross-section;

| 2.2. | For reference on the following terms see explanatory figure in appendix 1. |
| --- | --- |

2.2.

For reference on the following terms see explanatory figure in appendix 1.

| 2.3. | ‘Structure’ of a tyre means the technical characteristics of the tyre carcass. The following structures are distinguished in particular:






  2.3.1. | ‘Diagonal’ or ‘bias-ply’ describes a tyre structure in which the ply cords extend to the bead and are laid at alternate angles of substantially less than 90° to the centreline of the tread; |
| --- | --- | --- |

2.3.

‘Structure’ of a tyre means the technical characteristics of the tyre carcass. The following structures are distinguished in particular:

2.3.1.

‘Diagonal’ or ‘bias-ply’ describes a tyre structure in which the ply cords extend to the bead and are laid at alternate angles of substantially less than 90° to the centreline of the tread;

| 2.3.2. | ‘Bias-belted’ describes a tyre structure of diagonal (bias-ply) type in which the carcass is restricted by a belt comprising two or more layers of substantially inextensible cord material laid at alternate angles close to those of the carcass; |
| --- | --- |

2.3.2.

‘Bias-belted’ describes a tyre structure of diagonal (bias-ply) type in which the carcass is restricted by a belt comprising two or more layers of substantially inextensible cord material laid at alternate angles close to those of the carcass;

| 2.3.3. | ‘Radial’ describes a tyre structure in which the ply cords extend to the beads and are laid substantially at 90° to the centreline of the tread, the carcass being stabilised by an essentially inextensible circumferential belt; |
| --- | --- |

2.3.3.

‘Radial’ describes a tyre structure in which the ply cords extend to the beads and are laid substantially at 90° to the centreline of the tread, the carcass being stabilised by an essentially inextensible circumferential belt;

| 2.4. | ‘Bead’ means the part of a tyre which is of such shape and structure as to fit the rim and hold the tyre on it; |
| --- | --- |

2.4.

‘Bead’ means the part of a tyre which is of such shape and structure as to fit the rim and hold the tyre on it;

| 2.5. | ‘Cord’ means the strands forming the fabric of the plies in the tyre; |
| --- | --- |

2.5.

‘Cord’ means the strands forming the fabric of the plies in the tyre;

| 2.6. | ‘Ply’ means a layer of rubber-coated parallel cords; |
| --- | --- |

2.6.

‘Ply’ means a layer of rubber-coated parallel cords;

| 2.7. | ‘Carcass’ means that part of a tyre other than the tread and the rubber sidewalls which, when inflated, bears the load; |
| --- | --- |

2.7.

‘Carcass’ means that part of a tyre other than the tread and the rubber sidewalls which, when inflated, bears the load;

| 2.8. | ‘Tread’ means that part of a tyre which comes into contact with the ground; |
| --- | --- |

2.8.

‘Tread’ means that part of a tyre which comes into contact with the ground;

| 2.9. | ‘Sidewall’ means the part of the tyre, excluding the tread, which is visible when the tyre, fitted to a rim, is viewed from the side; |
| --- | --- |

2.9.

‘Sidewall’ means the part of the tyre, excluding the tread, which is visible when the tyre, fitted to a rim, is viewed from the side;

| 2.10. | ‘Section width (S)’ means the linear distance between the outsides of the sidewalls of an inflated tyre, excluding elevations due to labelling (marking), decoration or protective bands or ribs; |
| --- | --- |

2.10.

‘Section width (S)’ means the linear distance between the outsides of the sidewalls of an inflated tyre, excluding elevations due to labelling (marking), decoration or protective bands or ribs;

| 2.11. | ‘Overall width’ means the linear distance between the outside of the sidewalls of an inflated tyre, including labelling (marking), decoration and protective bands or ribs; |
| --- | --- |

2.11.

‘Overall width’ means the linear distance between the outside of the sidewalls of an inflated tyre, including labelling (marking), decoration and protective bands or ribs;

| 2.12. | ‘Section height (h)’ means a distance equal to half the difference between the outer diameter of the tyre and the nominal rim diameter; |
| --- | --- |

2.12.

‘Section height (h)’ means a distance equal to half the difference between the outer diameter of the tyre and the nominal rim diameter;

| 2.13. | ‘Nominal aspect ratio (Ra)’ means one hundred times the number obtained by dividing the number expressing the nominal section height in millimetres by the number expressing the nominal section width in millimetres; |
| --- | --- |

2.13.

‘Nominal aspect ratio (Ra)’ means one hundred times the number obtained by dividing the number expressing the nominal section height in millimetres by the number expressing the nominal section width in millimetres;

| 2.14. | ‘Outer diameter (D)’ means the overall diameter of an inflated new tyre; |
| --- | --- |

2.14.

‘Outer diameter (D)’ means the overall diameter of an inflated new tyre;

| 2.15. | ‘Tyre-size designation’ means a designation showing:






  2.15.1. | the nominal section width (S1). This value must be expressed in mm. |
| --- | --- | --- |

2.15.

‘Tyre-size designation’ means a designation showing:

2.15.1.

the nominal section width (S1). This value must be expressed in mm.

| 2.15.2. | the nominal aspect ratio (Ra). |
| --- | --- |

2.15.2.

the nominal aspect ratio (Ra).

| 2.15.3. | an indication of the structure, placed in front of the nominal rim diameter marking, as follows:






  2.15.3.1. | n diagonal (bias-ply) tyres, the symbol ‘-’ or the letter ‘D’; |
| --- | --- | --- |

2.15.3.

an indication of the structure, placed in front of the nominal rim diameter marking, as follows:

2.15.3.1.

n diagonal (bias-ply) tyres, the symbol ‘-’ or the letter ‘D’;

| 2.15.3.2. | n radial-ply tyres, the letter ‘R’; |
| --- | --- |

2.15.3.2.

n radial-ply tyres, the letter ‘R’;

| 2.15.3.3. | n bias-belted tyres, the letter ‘B’. |
| --- | --- |

2.15.3.3.

n bias-belted tyres, the letter ‘B’.

| 2.15.4. | the conventional number ‘d’ denoting the nominal rim diameter; |
| --- | --- |

2.15.4.

the conventional number ‘d’ denoting the nominal rim diameter;

| 2.15.5. | optionally, the letters ‘IMP’ after the nominal rim diameter marking in case of Implement tyres; |
| --- | --- |

2.15.5.

optionally, the letters ‘IMP’ after the nominal rim diameter marking in case of Implement tyres;

| 2.15.6. | optionally, the letters ‘FRONT’ after the nominal rim diameter marking in case of Tractor steering wheel tyres; |
| --- | --- |

2.15.6.

optionally, the letters ‘FRONT’ after the nominal rim diameter marking in case of Tractor steering wheel tyres;

| 2.15.7. | However for tyres listed in annex 5 the ‘tyre size designation’ is that shown in the first column of those tables. |
| --- | --- |

2.15.7.

However for tyres listed in annex 5 the ‘tyre size designation’ is that shown in the first column of those tables.

| 2.15.8. | The letters ‘IF’ before the nominal section width in case of ‘Improved Flexion Tyre’
  The letters ‘VF’ before the nominal section width in case of ‘Very High Flexion Tyre’. |
| --- | --- |

2.15.8.

The letters ‘IF’ before the nominal section width in case of ‘Improved Flexion Tyre’

The letters ‘VF’ before the nominal section width in case of ‘Very High Flexion Tyre’.

| 2.16. | ‘Nominal rim diameter (d)’ means a conventional number denoting the nominal diameter of the rim on which a tyre is designed to be mounted and corresponding to the diameter of the rim expressed either by size codes (number below 100 — see table for equivalence with millimeters) or in mm (numbers above 100) but not both;






  ‘d’ symbol expressed by codes | value to be used for the calculation in paras. 6.2.1 and 6,4 (mm) |
| --- | --- | --- |
| 4 | 102 |
| 5 | 127 |
| 6 | 152 |
| 7 | 178 |
| 8 | 203 |
| 9 | 229 |
| 10 | 254 |
| 11 | 279 |
| 12 | 305 |
| 13 | 330 |
| 14 | 356 |
| 15 | 381 |
| 15,3 | 389 |
| 16 | 406 |
| 16,1 | 409 |
| 17 | 432 |
| 18 | 457 |
| 19 | 483 |
| 20 | 508 |
| 21 | 533 |
| 22 | 559 |
| 24 | 610 |
| 26 | 660 |
| 28 | 711 |
| 30 | 762 |
| 32 | 813 |
| 34 | 864 |
| 36 | 914 |
| 38 | 965 |
| 40 | 1 016 |
| 42 | 1 067 |
| 44 | 1 118 |
| 46 | 1 168 |
| 48 | 1 219 |
| 50 | 1 270 |
| 52 | 1 321 |
| 54 | 1 372 |
| | |
| 14,5 | 368 |
| 15,5 | 394 |
| 16,5 | 419 |
| 17,5 | 445 |
| 19,5 | 495 |
| 20,5 | 521 |
| 22,5 | 572 |
| 24,5 | 622 |
| 26,5 | 673 |
| 30,5 | 775 |

2.16.

‘Nominal rim diameter (d)’ means a conventional number denoting the nominal diameter of the rim on which a tyre is designed to be mounted and corresponding to the diameter of the rim expressed either by size codes (number below 100 — see table for equivalence with millimeters) or in mm (numbers above 100) but not both;

‘d’ symbol expressed by codes

value to be used for the calculation in paras. 6.2.1 and 6,4 (mm)

4

102

5

127

6

152

7

178

8

203

9

229

10

254

11

279

12

305

13

330

14

356

15

381

15,3

389

16

406

16,1

409

17

432

18

457

19

483

20

508

21

533

22

559

24

610

26

660

28

711

30

762

32

813

34

864

36

914

38

965

40

1 016

42

1 067

44

1 118

46

1 168

48

1 219

50

1 270

52

1 321

54

1 372

14,5

368

15,5

394

16,5

419

17,5

445

19,5

495

20,5

521

22,5

572

24,5

622

26,5

673

30,5

775

| 2.17. | ‘Rim’ means the support for a tyre-and-tube assembly, or for a tubeless tyre, on which the tyre beads are seated; |
| --- | --- |

2.17.

‘Rim’ means the support for a tyre-and-tube assembly, or for a tubeless tyre, on which the tyre beads are seated;

| 2.18. | ‘Theoretical rim’ means the notional rim whose width would be equal to X times the nominal section width of a tyre; the value ‘X’ must be specified by the tyre manufacturer or the reference rim width is that mentioned in annex 5 for the relevant ‘tyre size designation’; |
| --- | --- |

2.18.

‘Theoretical rim’ means the notional rim whose width would be equal to X times the nominal section width of a tyre; the value ‘X’ must be specified by the tyre manufacturer or the reference rim width is that mentioned in annex 5 for the relevant ‘tyre size designation’;

| 2.19. | ‘Measuring rim’ means the rim on which a tyre is fitted for the measurement of the dimensions; |
| --- | --- |

2.19.

‘Measuring rim’ means the rim on which a tyre is fitted for the measurement of the dimensions;

| 2.20. | ‘Tractor-drive wheel tyre’ means a tyre designed to be fitted to driven axles of agricultural tractors (vehicles in categories T) suitable for sustained high torque service. The tread pattern of the tyre consists of lugs or cleats.






  2.20.1. | ‘Improved Flexion Tyre’ or ‘Very High Flexion Tyre’ describe a pneumatic-tyre structure in which the carcass is more resistant than that of the corresponding standard tyre. |
| --- | --- | --- |

2.20.

‘Tractor-drive wheel tyre’ means a tyre designed to be fitted to driven axles of agricultural tractors (vehicles in categories T) suitable for sustained high torque service. The tread pattern of the tyre consists of lugs or cleats.

2.20.1.

‘Improved Flexion Tyre’ or ‘Very High Flexion Tyre’ describe a pneumatic-tyre structure in which the carcass is more resistant than that of the corresponding standard tyre.

| 2.21. | ‘Tractor steering wheel tyre’ means a tyre designed to be fitted to non-driven axles of agricultural and forestry tractors (motor vehicles in category T); The tread pattern of the tyre generally consists of circumferential grooves and ribs. |
| --- | --- |

2.21.

‘Tractor steering wheel tyre’ means a tyre designed to be fitted to non-driven axles of agricultural and forestry tractors (motor vehicles in category T); The tread pattern of the tyre generally consists of circumferential grooves and ribs.

| 2.22. | ‘Implement tyre’ means a tyre designed primarily for agricultural machines or implements (vehicles in category S) or for agricultural trailers (vehicles in category R); however it may also equip either front steering wheels and drive wheels of agricultural and forestry tractors (vehicles in category T), but it is not suitable for sustained high torque services. |
| --- | --- |

2.22.

‘Implement tyre’ means a tyre designed primarily for agricultural machines or implements (vehicles in category S) or for agricultural trailers (vehicles in category R); however it may also equip either front steering wheels and drive wheels of agricultural and forestry tractors (vehicles in category T), but it is not suitable for sustained high torque services.

| 2.23. | ‘Traction tyre’ means a tyre designed primarily for the equipment of driven axles of implements or agricultural machinery, excluding sustained high torque services. The tread pattern of the tyre generally consists of lugs or cleats. The type of application is identified with the symbol: |
| --- | --- |

2.23.

‘Traction tyre’ means a tyre designed primarily for the equipment of driven axles of implements or agricultural machinery, excluding sustained high torque services. The tread pattern of the tyre generally consists of lugs or cleats. The type of application is identified with the symbol:
  Image 1

| 2.24. | ‘Trailer tyre’ means a tyre designed for the equipment of non-driven (trailed) axles of implements, agricultural machinery or trailers.
  The type of application is identified with the symbol: |
| --- | --- |

2.24.

‘Trailer tyre’ means a tyre designed for the equipment of non-driven (trailed) axles of implements, agricultural machinery or trailers.

The type of application is identified with the symbol:
  Image 2

| 2.25. | ‘Mixed applications tyre’ means a tyre designed to be fitted to either driven and non-driven axles of implements, agricultural machinery or trailers; |
| --- | --- |

2.25.

‘Mixed applications tyre’ means a tyre designed to be fitted to either driven and non-driven axles of implements, agricultural machinery or trailers;

| 2.26. | ‘Service description’ means the association of a load capacity index with a speed category symbol






  2.26.1. | In case of implement tyres the service description is supplemented with the relevant symbol for the type of application concerned (traction or trailer) as defined in paragraphs 2.23 and 2.24. |
| --- | --- | --- |

2.26.

‘Service description’ means the association of a load capacity index with a speed category symbol

2.26.1.

In case of implement tyres the service description is supplemented with the relevant symbol for the type of application concerned (traction or trailer) as defined in paragraphs 2.23 and 2.24.

| 2.27. | ‘Supplementary service description’ means an additional service description, marked within a circle, to identify a special type of service (load rating and speed category) to which the tyre type is also allowed in addition to the applicable load variation with speed (see annex 7). |
| --- | --- |

2.27.

‘Supplementary service description’ means an additional service description, marked within a circle, to identify a special type of service (load rating and speed category) to which the tyre type is also allowed in addition to the applicable load variation with speed (see annex 7).

| 2.28. | ‘Load-capacity index’ means one number which indicates the load the tyre can carry in single formation at the speed corresponding to the associated speed category and when operated in conformity with the requirements governing utilisation specified by the manufacturer. The list of these indices and their corresponding masses is given in annex 4; |
| --- | --- |

2.28.

‘Load-capacity index’ means one number which indicates the load the tyre can carry in single formation at the speed corresponding to the associated speed category and when operated in conformity with the requirements governing utilisation specified by the manufacturer. The list of these indices and their corresponding masses is given in annex 4;

| 2.29. | ‘Speed category’, the reference speed expressed by the speed category symbol as shown in the table below:






  Speed category symbol | Reference speed
  (km/h) |
| --- | --- | --- |
| A2 | 10 |
| A4 | 20 |
| A6 | 30 |
| A8 | 40 |
| B | 50 |
| D | 65 |

2.29.

‘Speed category’, the reference speed expressed by the speed category symbol as shown in the table below:

Speed category symbol

Reference speed

(km/h)

A2

10

A4

20

A6

30

A8

40

B

50

D

65

| 2.30. | ‘Table: Variation of load capacity with speed’ means the tables in annex 7 showing as a function of the category of use, the type of application, the load capacity index and the nominal speed category symbol, the maximum load rating variations which a tyre can withstand when used at speeds different from that corresponding to its speed category symbol;






  2.30.1. | The table ‘Variation of load capacity with speed’ is not applicable to the ‘supplementary service description’. |
| --- | --- | --- |

2.30.

‘Table: Variation of load capacity with speed’ means the tables in annex 7 showing as a function of the category of use, the type of application, the load capacity index and the nominal speed category symbol, the maximum load rating variations which a tyre can withstand when used at speeds different from that corresponding to its speed category symbol;

2.30.1.

The table ‘Variation of load capacity with speed’ is not applicable to the ‘supplementary service description’.

| 2.30.2. | The table ‘Variation of load capacity with speed’ is not applicable to ‘Improved Flexion’ or ‘Very High Flexion’ tyres. |
| --- | --- |

2.30.2.

The table ‘Variation of load capacity with speed’ is not applicable to ‘Improved Flexion’ or ‘Very High Flexion’ tyres.

| 2.31. | ‘Maximum load rating’ means the maximum mass the tyre is rated to carry:






  2.31.1. | It must not exceed the percentage of the value associated with the relevant load capacity index of the tyre as indicated in the table ‘Load-capacity variation with speed’ (see paragraph 2.30 above), with reference to the category of use, the speed category symbol of the tyre and the speed capability of the vehicle to which the tyre is fitted. |
| --- | --- | --- |

2.31.

‘Maximum load rating’ means the maximum mass the tyre is rated to carry:

2.31.1.

It must not exceed the percentage of the value associated with the relevant load capacity index of the tyre as indicated in the table ‘Load-capacity variation with speed’ (see paragraph 2.30 above), with reference to the category of use, the speed category symbol of the tyre and the speed capability of the vehicle to which the tyre is fitted.

| 2.32. | ‘Tread groove’ means the space between the adjacent ribs or blocks in the tread pattern; |
| --- | --- |

2.32.

‘Tread groove’ means the space between the adjacent ribs or blocks in the tread pattern;

| 2.33. | ‘Tread lug (or cleat)’ means the solid-block element protruding from the base of the tread pattern; |
| --- | --- |

2.33.

‘Tread lug (or cleat)’ means the solid-block element protruding from the base of the tread pattern;

| 2.34. | ‘Special tread’ means a tyre, the tread pattern and structure of which are primarily designed to ensure in marshy areas a better grip than that of a standard tread tyre. The tread pattern of the tyre generally consists of lugs or cleats deeper than those of a standard tyre; |
| --- | --- |

2.34.

‘Special tread’ means a tyre, the tread pattern and structure of which are primarily designed to ensure in marshy areas a better grip than that of a standard tread tyre. The tread pattern of the tyre generally consists of lugs or cleats deeper than those of a standard tyre;

| 2.35. | ‘Chunking’ means the breaking away of small pieces of rubber from the tread; |
| --- | --- |

2.35.

‘Chunking’ means the breaking away of small pieces of rubber from the tread;

| 2.36. | ‘Cord separation’ means the parting of the cords from their rubber coating; |
| --- | --- |

2.36.

‘Cord separation’ means the parting of the cords from their rubber coating;

| 2.37. | ‘Ply separation’ means the parting of adjacent plies; |
| --- | --- |

2.37.

‘Ply separation’ means the parting of adjacent plies;

| 2.38. | ‘Tread separation’ means the pulling away of the tread from the carcass; |
| --- | --- |

2.38.

‘Tread separation’ means the pulling away of the tread from the carcass;

| 2.39. | ‘Test rim’ means the rim on which a tyre must be fitted for the performance test. |
| --- | --- |

2.39.

‘Test rim’ means the rim on which a tyre must be fitted for the performance test.

| 2.40. | ‘Tyre classification code’ means the optional marking detailed in annex 10 that identifies the category of use and the particular type of tread pattern and application as specified by ISO 4251-4. |
| --- | --- |

2.40.

‘Tyre classification code’ means the optional marking detailed in annex 10 that identifies the category of use and the particular type of tread pattern and application as specified by ISO 4251-4.

| 2.41. | Forestry tyre: means a tyre designed to be fitted to machines or equipments used in forestry applications. |
| --- | --- |

2.41.

Forestry tyre: means a tyre designed to be fitted to machines or equipments used in forestry applications.

3.   MARKINGS

3.1.   Tyres must bear:

| 3.1.1. | the manufacturer’s trade name or mark; |
| --- | --- |

3.1.1.

the manufacturer’s trade name or mark;

| 3.1.2. | the tyre-size designation as defined in paragraph 2.15; |
| --- | --- |

3.1.2.

the tyre-size designation as defined in paragraph 2.15;

| 3.1.3. | an indication of the structure as follows:






  3.1.3.1. | on diagonal (bias-ply) tyres, no additional marking; |
| --- | --- | --- |

3.1.3.

an indication of the structure as follows:

3.1.3.1.

on diagonal (bias-ply) tyres, no additional marking;

| 3.1.3.2. | on radial-ply tyres, optionally, the word ‘RADIAL’; |
| --- | --- |

3.1.3.2.

on radial-ply tyres, optionally, the word ‘RADIAL’;

| 3.1.3.3. | on bias-belted tyres, the words ‘BIAS-BELTED’; |
| --- | --- |

3.1.3.3.

on bias-belted tyres, the words ‘BIAS-BELTED’;

| 3.1.4. | the ‘service description’ as defined in paragraph 2.26.






  3.1.4.1. | in the case of implement tyre, the service description must be supplemented with the relevant application symbol; |
| --- | --- | --- |

3.1.4.

the ‘service description’ as defined in paragraph 2.26.

3.1.4.1.

in the case of implement tyre, the service description must be supplemented with the relevant application symbol;

| 3.1.4.2. | in the case of implement tyre for mixed applications the tyre must be marked with two service descriptions one for ‘trailer’ applications and the other for ‘traction’ applications, each supplemented with the relevant symbol (see paragraphs 2.23 and 2.24 above) as follows: | or | |
| --- | --- | --- | --- |

3.1.4.2.

in the case of implement tyre for mixed applications the tyre must be marked with two service descriptions one for ‘trailer’ applications and the other for ‘traction’ applications, each supplemented with the relevant symbol (see paragraphs 2.23 and 2.24 above) as follows:

Image 3

or

Image 4

where the first service description (95 A6) refers to ‘traction applications’ and the second (108 A6) to ‘trailer applications’.

| 3.1.5. | the supplementary service description, if applicable. |
| --- | --- |

3.1.5.

the supplementary service description, if applicable.

| 3.1.6. | the inscription ‘DEEP’ (or ‘R-2’) in the case of a special tread tyre; |
| --- | --- |

3.1.6.

the inscription ‘DEEP’ (or ‘R-2’) in the case of a special tread tyre;

| 3.1.7. | the inscriptions ‘F-1’ or ‘F-2’ in the case of a Tractor steering wheel tyre that is not already marked as per paragraph 2.15.6 above; |
| --- | --- |

3.1.7.

the inscriptions ‘F-1’ or ‘F-2’ in the case of a Tractor steering wheel tyre that is not already marked as per paragraph 2.15.6 above;

| 3.1.8. | the inscriptions ‘LS-1’, ‘LS-2’, ‘LS-3’ or ‘LS-4’ in the case of tyres for forestry machines.






  3.1.8.1. | ‘LS-3’ identifies special tread tyres. |
| --- | --- | --- |

3.1.8.

the inscriptions ‘LS-1’, ‘LS-2’, ‘LS-3’ or ‘LS-4’ in the case of tyres for forestry machines.

3.1.8.1.

‘LS-3’ identifies special tread tyres.

| 3.1.8.2. | The inscription ‘I-3’ for implement tyres with traction tread as identified in Annex 5, tables 5 and 6. |
| --- | --- |

3.1.8.2.

The inscription ‘I-3’ for implement tyres with traction tread as identified in Annex 5, tables 5 and 6.

| 3.1.9. | the inscription ‘IMPLEMENT’ in the case of an implement tyre that is not already marked as per paragraph 2.15.5 above; |
| --- | --- |

3.1.9.

the inscription ‘IMPLEMENT’ in the case of an implement tyre that is not already marked as per paragraph 2.15.5 above;

| 3.1.10. | the word ‘TUBELESS’ if the tyre is designed for use without an inner tube; |
| --- | --- |

3.1.10.

the word ‘TUBELESS’ if the tyre is designed for use without an inner tube;

| 3.1.11. | the inscription ‘...bar MAX.’ (or ‘... kPa MAX’) inside the pictogram shown in annex 11, to notify the cold inflation pressure that shall not be exceeded for bead seating during tyre mounting. |
| --- | --- |

3.1.11.

the inscription ‘...bar MAX.’ (or ‘... kPa MAX’) inside the pictogram shown in annex 11, to notify the cold inflation pressure that shall not be exceeded for bead seating during tyre mounting.

| 3.1.12. | The inscription ‘IF’ shall be added in front of the tyre-size designation when the tyre is ‘Improved Flexion Tyre’.
  The inscription ‘VF’ shall be added in front of the tyre-size designation when the tyre is ‘Very High Flexion Tyre’. |
| --- | --- |

3.1.12.

The inscription ‘IF’ shall be added in front of the tyre-size designation when the tyre is ‘Improved Flexion Tyre’.

The inscription ‘VF’ shall be added in front of the tyre-size designation when the tyre is ‘Very High Flexion Tyre’.

3.2.   The tyre must also be marked with the date of manufacture in the form of a group of four digits, the first two showing the week and the last two the year of manufacture. However, this marking shall not be mandatory on any tyre submitted for approval until two years after the date of entry into force of this Regulation (1).

1

3.3.   The tyre must also bear the ECE tyre type approval mark, the model of which is given in annex 2.

3.4.   Position of markings

| 3.4.1. | The markings referred to in paragraph 3.1 shall be moulded on both sidewalls of the tyre. |
| --- | --- |

3.4.1.

The markings referred to in paragraph 3.1 shall be moulded on both sidewalls of the tyre.

| 3.4.2. | The markings referred to in paragraphs 3.2 and 3.3 shall be moulded on one sidewall only. |
| --- | --- |

3.4.2.

The markings referred to in paragraphs 3.2 and 3.3 shall be moulded on one sidewall only.

| 3.4.3. | All markings must be clearly and legibly moulded and produced as part of the process during manufacture. The use of branding or other methods of marking after completion of the original manufacturing process is not permitted. |
| --- | --- |

3.4.3.

All markings must be clearly and legibly moulded and produced as part of the process during manufacture. The use of branding or other methods of marking after completion of the original manufacturing process is not permitted.

3.5.   Annex 3 gives examples of the arrangement of tyre markings.

4.   APPLICATION FOR APPROVAL

| 4.1. | The application for approval of a type of tyre for agricultural and forestry services shall be submitted by the holder of the trade name or mark or by his duly accredited representative. It shall specify:






  4.1.1. | The tyre size designation as defined in paragraph 2.15 of this Regulation. |
| --- | --- | --- |

4.1.

The application for approval of a type of tyre for agricultural and forestry services shall be submitted by the holder of the trade name or mark or by his duly accredited representative. It shall specify:

4.1.1.

The tyre size designation as defined in paragraph 2.15 of this Regulation.

| 4.1.2. | The trade name or mark. |
| --- | --- |

4.1.2.

The trade name or mark.

| 4.1.3. | The category of use as defined in paragraph 2.1.3 of this Regulation. |
| --- | --- |

4.1.3.

The category of use as defined in paragraph 2.1.3 of this Regulation.

| 4.1.4. | The structure. |
| --- | --- |

4.1.4.

The structure.

| 4.1.5. | The speed category symbol. |
| --- | --- |

4.1.5.

The speed category symbol.

| 4.1.6. | The load-capacity index of the tyre, specifying in case of implement tyres that for traction (only) and that for trailer application, if applicable. |
| --- | --- |

4.1.6.

The load-capacity index of the tyre, specifying in case of implement tyres that for traction (only) and that for trailer application, if applicable.

| 4.1.7. | Whether the tyre is to be fitted with or without an inner tube. |
| --- | --- |

4.1.7.

Whether the tyre is to be fitted with or without an inner tube.

| 4.1.8. | The supplementary service description, if applicable. |
| --- | --- |

4.1.8.

The supplementary service description, if applicable.

| 4.1.9. | The tyre/rim configuration. |
| --- | --- |

4.1.9.

The tyre/rim configuration.

| 4.1.10. | The rim to be used for measurements and the rim to be used for tests. |
| --- | --- |

4.1.10.

The rim to be used for measurements and the rim to be used for tests.

| 4.1.11. | The rim(s) on which the tyre can be mounted. |
| --- | --- |

4.1.11.

The rim(s) on which the tyre can be mounted.

| 4.1.12. | The inflation pressure (bar or kPa) for measurements. |
| --- | --- |

4.1.12.

The inflation pressure (bar or kPa) for measurements.

| 4.1.13. | The factor X referred to in paragraph 2.18 or the applicable table of annex 5. |
| --- | --- |

4.1.13.

The factor X referred to in paragraph 2.18 or the applicable table of annex 5.

| 4.1.14. | The cold inflation pressure that shall not be exceeded for bead seating during tyre mounting, as specified by the tyre manufacturer for the tyre type. |
| --- | --- |

4.1.14.

The cold inflation pressure that shall not be exceeded for bead seating during tyre mounting, as specified by the tyre manufacturer for the tyre type.

| 4.1.15. | The test pressure, in kPa (or in bar). |
| --- | --- |

4.1.15.

The test pressure, in kPa (or in bar).

| 4.2. | On request of the approval authority, the tyre manufacturer must also submit a complete technical file for each tyre type containing in particular sketches or photographs (three copies) to identify the tread pattern and the envelope of the inflated tyre mounted on the measuring rim showing the relevant dimensions (see paragraphs 6.1 and 6.2) of the component type submitted for approval. It shall also either contain the test report issued by an approved test laboratory or be accompanied by one sample of the tyre type, as requested by the approval authority. |
| --- | --- |

4.2.

On request of the approval authority, the tyre manufacturer must also submit a complete technical file for each tyre type containing in particular sketches or photographs (three copies) to identify the tread pattern and the envelope of the inflated tyre mounted on the measuring rim showing the relevant dimensions (see paragraphs 6.1 and 6.2) of the component type submitted for approval. It shall also either contain the test report issued by an approved test laboratory or be accompanied by one sample of the tyre type, as requested by the approval authority.

5.   APPROVAL

| 5.1. | If the type of pneumatic tyre submitted for approval in pursuance to this Regulation meets the requirements of paragraph 6 below, approval of that type of tyre shall be granted. |
| --- | --- |

5.1.

If the type of pneumatic tyre submitted for approval in pursuance to this Regulation meets the requirements of paragraph 6 below, approval of that type of tyre shall be granted.

| 5.2. | An approval number shall be assigned to each type approved; its first two digits (at present 00 for the Regulation in its original form) shall indicate the series of amendments incorporating the most recent major technical amendments made to the Regulation at the time of issue of the approval. The same Contracting Party may not assign the same number to another type of pneumatic tyre. |
| --- | --- |

5.2.

An approval number shall be assigned to each type approved; its first two digits (at present 00 for the Regulation in its original form) shall indicate the series of amendments incorporating the most recent major technical amendments made to the Regulation at the time of issue of the approval. The same Contracting Party may not assign the same number to another type of pneumatic tyre.

| 5.3. | Notice of approval or extension or refusal or withdrawal of approval or production definitely discontinued of a type of pneumatic tyre pursuant to this Regulation shall be communicated to the Parties to the 1958 Agreement which apply this Regulation, by means of a form conforming to the model in annex 1 to this Regulation. |
| --- | --- |

5.3.

Notice of approval or extension or refusal or withdrawal of approval or production definitely discontinued of a type of pneumatic tyre pursuant to this Regulation shall be communicated to the Parties to the 1958 Agreement which apply this Regulation, by means of a form conforming to the model in annex 1 to this Regulation.

| 5.4. | There shall be affixed, conspicuously, to every pneumatic tyre conforming to a type of tyre approved under this Regulation, in the space referred to in paragraph 3.3 above and in addition to the markings prescribed in paragraphs 3.1 and 3.2 above, an international approval mark consisting of:






  5.4.1. | A circle surrounding the letter ‘E’ followed by the distinguishing number of the country which has granted approval (2). |
| --- | --- | --- |

5.4.

There shall be affixed, conspicuously, to every pneumatic tyre conforming to a type of tyre approved under this Regulation, in the space referred to in paragraph 3.3 above and in addition to the markings prescribed in paragraphs 3.1 and 3.2 above, an international approval mark consisting of:

5.4.1.

A circle surrounding the letter ‘E’ followed by the distinguishing number of the country which has granted approval (2).

2

| 5.4.2. | The number of this Regulation, followed by the letter ‘R’, a dash and the type approval number. |
| --- | --- |

5.4.2.

The number of this Regulation, followed by the letter ‘R’, a dash and the type approval number.

| 5.5. | The approval mark shall be clearly legible and be indelible. |
| --- | --- |

5.5.

The approval mark shall be clearly legible and be indelible.

| 5.6. | Annex 2 to this Regulation gives an example of the arrangement of the approval mark. |
| --- | --- |

5.6.

Annex 2 to this Regulation gives an example of the arrangement of the approval mark.

6.   REQUIREMENTS

6.1.   Section width of a tyre

| 6.1.1. | Except as provided by paragraph 6.1.2, the section width is calculated by the following formula:
  S = S1 + K (A – A1)
  where:






  S | is the ‘section width’ expressed in mm related to the measuring rim; |
| --- | --- | --- |
| S1 | is the ‘nominal section width’ in mm as shown on the sidewall of the tyre in the tyre-size designation as prescribed; |
| A | is the width (expressed in mm) (3) of the measuring rim, as shown by the manufacturer in the descriptive note, |
| A1 | is the width (expressed in mm) (3) of the theoretical rim; it is taken to equal S1 multiplied by the factor X as specified by the tyre manufacturer and |
| K | is taken to equal 0,4. |

6.1.1.

Except as provided by paragraph 6.1.2, the section width is calculated by the following formula:

S = S1 + K (A – A1)

where:

S

is the ‘section width’ expressed in mm related to the measuring rim;

S1

is the ‘nominal section width’ in mm as shown on the sidewall of the tyre in the tyre-size designation as prescribed;

A

is the width (expressed in mm) (3) of the measuring rim, as shown by the manufacturer in the descriptive note,

3

A1

is the width (expressed in mm) (3) of the theoretical rim; it is taken to equal S1 multiplied by the factor X as specified by the tyre manufacturer and

3

K

is taken to equal 0,4.

| 6.1.2. | However, for the types of tyre for which the size designation is given in the first column of the tables in annex 5, the theoretical rim width (A1) and the nominal section width (S1) are given opposite the tyre size designation in those tables. |
| --- | --- |

6.1.2.

However, for the types of tyre for which the size designation is given in the first column of the tables in annex 5, the theoretical rim width (A1) and the nominal section width (S1) are given opposite the tyre size designation in those tables.

6.2.   Outer diameter of a tyre

| 6.2.1. | Except as provided by paragraph 6.2.2, the outer diameter of a tyre is calculated by the following formula:
  D = d + 2 H
  where:






  D | is the outer diameter expressed in mm, |
| --- | --- | --- |
| d | is the conventional number denoting the nominal rim diameter expressed in mm (see paragraph 2.16), |
| H | is the nominal section height in mm and is equal to:
  H = 0,01 × Ra × S1 |

6.2.1.

Except as provided by paragraph 6.2.2, the outer diameter of a tyre is calculated by the following formula:

D = d + 2 H

where:

D

is the outer diameter expressed in mm,

d

is the conventional number denoting the nominal rim diameter expressed in mm (see paragraph 2.16),

H

is the nominal section height in mm and is equal to:

H = 0,01 × Ra × S1

where:

| Ra | is the nominal aspect ratio, |
| --- | --- |
| S1 | is the ‘nominal section width’ in mm |

Ra

is the nominal aspect ratio,

S1

is the ‘nominal section width’ in mm

all as shown on the sidewall of the tyre in the tyre-size designation in conformity with the requirements of paragraph 2.15.

| 6.2.2. | However, for the types of tyres for which the size designation is given in the first column of the tables of annex 5 the outer diameter (D) and the nominal rim diameter (d) expressed in mm are given opposite the tyre size designation in those tables. |
| --- | --- |

6.2.2.

However, for the types of tyres for which the size designation is given in the first column of the tables of annex 5 the outer diameter (D) and the nominal rim diameter (d) expressed in mm are given opposite the tyre size designation in those tables.

6.3.   Tyre section width: specification of tolerances

| 6.3.1. | The overall width of a tyre may be less than the section width determined pursuant to paragraph 6.1, or shown in annex 5; |
| --- | --- |

6.3.1.

The overall width of a tyre may be less than the section width determined pursuant to paragraph 6.1, or shown in annex 5;

| 6.3.2. | The overall width of a tyre may not exceed the section width determined pursuant to paragraph 6.1 by more than the following: | Radial construction: + 5 % |
| --- | --- | --- |

6.3.2.

The overall width of a tyre may not exceed the section width determined pursuant to paragraph 6.1 by more than the following:

Radial construction: + 5 %

| | Diagonal (bias) construction: + 8 % |
| --- | --- |

Diagonal (bias) construction: + 8 %

| 6.3.3. | However, for the types of tyre for which the size designation is given in the first column of the tables in annex 5, the allowed percentages are those given in the relevant tables, if any. |
| --- | --- |

6.3.3.

However, for the types of tyre for which the size designation is given in the first column of the tables in annex 5, the allowed percentages are those given in the relevant tables, if any.

6.4.   Tyre outer diameter: specification of tolerances

| 6.4.1. | The outer diameter of a tyre must not be outside the values D min and D max obtained from the following formulae:
  D min = d + 2 (H × a)
  D max = d + 2 (H × b)
  where ‘H’ and ‘d’ are as defined in paragraph 6.2.1.






  6.4.1.1. | for sizes listed in annex 5: H = 0,5 (D – d) (for references see paragraph 6.2 above). |
| --- | --- | --- |

6.4.1.

The outer diameter of a tyre must not be outside the values D min and D max obtained from the following formulae:

D min = d + 2 (H × a)

D max = d + 2 (H × b)

where ‘H’ and ‘d’ are as defined in paragraph 6.2.1.

6.4.1.1.

for sizes listed in annex 5: H = 0,5 (D – d) (for references see paragraph 6.2 above).

| 6.4.2. | coefficients ‘a’ and ‘b’ are respectively:









  Category of use | Radial | Diagonal (bias) |
| --- | --- | --- | --- |
| a | b | a | b |
| Steering wheels | 0,96 | 1,04 | 0,96 | 1,07 |
| Tractor drive wheels and forestry machines — normal | 0,96 | 1,04 | 0,96 | 1,07 |
| Tractor drive wheels and forestry machines — special | 1,00 | 1,12 | 1,00 | 1,12 |
| Implement | 0,96 | 1,04 | 0,96 | 1,07 |

6.4.2.

coefficients ‘a’ and ‘b’ are respectively:

Category of use

Radial

Diagonal (bias)

a

b

a

b

Steering wheels

0,96

1,04

0,96

1,07

Tractor drive wheels and forestry machines — normal

0,96

1,04

0,96

1,07

Tractor drive wheels and forestry machines — special

1,00

1,12

1,00

1,12

Implement

0,96

1,04

0,96

1,07

| 6.4.3. | However, for the types of tyre for which the size designation is given in the first column of the tables in Annex 5, the allowed percentages are those given in the relevant tables, if any. |
| --- | --- |

6.4.3.

However, for the types of tyre for which the size designation is given in the first column of the tables in Annex 5, the allowed percentages are those given in the relevant tables, if any.

6.5.   Test procedures

| 6.5.1. | The actual dimensions of tyres are measured as prescribed in annex 6. |
| --- | --- |

6.5.1.

The actual dimensions of tyres are measured as prescribed in annex 6.

| 6.5.2. | The test procedure to assess the resistance of the tyre to burst is described in annex 8.






  6.5.2.1. | A tyre which, after undergoing the relevant test to assess the resistance to burst, does not exhibit any tread separation, ply separation, cord separation, broken beads or broken cords is deemed to have passed the test. The tyre tested shall not be used for any other tests. |
| --- | --- | --- |

6.5.2.

The test procedure to assess the resistance of the tyre to burst is described in annex 8.

6.5.2.1.

A tyre which, after undergoing the relevant test to assess the resistance to burst, does not exhibit any tread separation, ply separation, cord separation, broken beads or broken cords is deemed to have passed the test. The tyre tested shall not be used for any other tests.

| 6.5.3. | The test procedures to assess the suitability of the tyre for the claimed performances are described in annex 9.






  6.5.3.1. | A tyre which, after undergoing the relevant load/speed test, does not exhibit any tread separation, ply separation, cord separation or broken cords is deemed to have passed the test. The tyre tested shall not be used for any other tests. |
| --- | --- | --- |

6.5.3.

The test procedures to assess the suitability of the tyre for the claimed performances are described in annex 9.

6.5.3.1.

A tyre which, after undergoing the relevant load/speed test, does not exhibit any tread separation, ply separation, cord separation or broken cords is deemed to have passed the test. The tyre tested shall not be used for any other tests.

| 6.5.3.2. | A tyre which, after undergoing the relevant load/speed test, does exhibit chunking, due to the specific test conditions is deemed to have passed the test. |
| --- | --- |

6.5.3.2.

A tyre which, after undergoing the relevant load/speed test, does exhibit chunking, due to the specific test conditions is deemed to have passed the test.

| 6.5.4. | Where a tyre manufacturer produces a range of tyres it is not considered necessary to carry out tests on every type of tyre in the range. |
| --- | --- |

6.5.4.

Where a tyre manufacturer produces a range of tyres it is not considered necessary to carry out tests on every type of tyre in the range.

7.   MODIFICATION OF TYRE TYPE AND EXTENSION OF APPROVAL

| 7.1. | Every modification of a tyre type shall be notified to the administrative department which approved the tyre type. That department may then either:






  7.1.1. | Consider that the modifications made are unlikely to have an appreciable adverse effect and that in any case the tyre still meet the requirements; or |
| --- | --- | --- |

7.1.

Every modification of a tyre type shall be notified to the administrative department which approved the tyre type. That department may then either:

7.1.1.

Consider that the modifications made are unlikely to have an appreciable adverse effect and that in any case the tyre still meet the requirements; or

| 7.1.2. | Require a further test report from the technical service responsible for carrying out the tests. |
| --- | --- |

7.1.2.

Require a further test report from the technical service responsible for carrying out the tests.

| 7.2. | A modification of the tread pattern of the tyre shall not be considered to necessitate a repetition of the tests prescribed in paragraph 6 of this Regulation. |
| --- | --- |

7.2.

A modification of the tread pattern of the tyre shall not be considered to necessitate a repetition of the tests prescribed in paragraph 6 of this Regulation.

| 7.3. | Confirmation or refusal of approval, specifying the alterations, shall be communicated by the procedure specified in paragraph 5.3 above to the Parties to the Agreement which apply this Regulation. |
| --- | --- |

7.3.

Confirmation or refusal of approval, specifying the alterations, shall be communicated by the procedure specified in paragraph 5.3 above to the Parties to the Agreement which apply this Regulation.

| 7.4. | The competent authority issuing the extension of approval shall assign a series number for such an extension and inform thereof the other Parties to the 1958 Agreement applying this Regulation by means of a communication form conforming to the model in annex 1 to this Regulation. |
| --- | --- |

7.4.

The competent authority issuing the extension of approval shall assign a series number for such an extension and inform thereof the other Parties to the 1958 Agreement applying this Regulation by means of a communication form conforming to the model in annex 1 to this Regulation.

8.   CONFORMITY OF PRODUCTION

The conformity of production procedures shall comply with those set out in the Agreement, Appendix 2 (E/ECE/324-E/ECE/TRANS/505/Rev.2), with the following requirements:

| 8.1. | The pneumatic tyres approved under this Regulation shall be so manufactured as to conform to the type approved by meeting the requirements set forth in paragraph 6 above. |
| --- | --- |

8.1.

The pneumatic tyres approved under this Regulation shall be so manufactured as to conform to the type approved by meeting the requirements set forth in paragraph 6 above.

| 8.2. | The authority which has granted type approval may at any time verify the conformity control methods applied in each production facility. For each production facility, the normal frequency of these verifications shall be once every two years. |
| --- | --- |

8.2.

The authority which has granted type approval may at any time verify the conformity control methods applied in each production facility. For each production facility, the normal frequency of these verifications shall be once every two years.

9.   PENALTIES FOR NON-CONFORMITY OF PRODUCTION

| 9.1. | The approval granted in respect of a type of pneumatic tyre pursuant to this Regulation may be withdrawn if the requirement laid down in paragraph 8.1 above is not complied with or if the tyres taken from the series have failed to pass the tests prescribed in that paragraph. |
| --- | --- |

9.1.

The approval granted in respect of a type of pneumatic tyre pursuant to this Regulation may be withdrawn if the requirement laid down in paragraph 8.1 above is not complied with or if the tyres taken from the series have failed to pass the tests prescribed in that paragraph.

| 9.2. | If a Party to the Agreement which applies this Regulation withdraws an approval it has previously granted, it shall forthwith so notify the other Contracting Parties which apply this Regulation, by means of a communication form conforming to the model in annex 1 to this Regulation. |
| --- | --- |

9.2.

If a Party to the Agreement which applies this Regulation withdraws an approval it has previously granted, it shall forthwith so notify the other Contracting Parties which apply this Regulation, by means of a communication form conforming to the model in annex 1 to this Regulation.

10.   PRODUCTION DEFINITELY DISCONTINUED

If the holder of an approval completely ceases to manufacture a type of pneumatic tyre approved in accordance with this Regulation, he shall so inform the authority which granted the approval. Upon receiving the relevant communication that authority shall inform thereof the other Parties to the Agreement which apply this Regulation by means of a communication form conforming to the model in annex 1 to this Regulation.

11.   NAMES AND ADDRESSES OF TECHNICAL SERVICES RESPONSIBLE FOR CONDUCTING APPROVAL TESTS, OF TEST LABORATORIES, AND OF ADMINISTRATIVE DEPARTMENTS

| 11.1. | The Parties to the Agreement which apply this Regulation shall communicate to the United Nations Secretariat the names and addresses of the technical services responsible for conducting approval tests and, where applicable, of the approved test laboratories and of the administrative departments which grant approval and to which forms certifying approval or refusal or withdrawal of approval, issued in other countries, are to be sent. |
| --- | --- |

11.1.

The Parties to the Agreement which apply this Regulation shall communicate to the United Nations Secretariat the names and addresses of the technical services responsible for conducting approval tests and, where applicable, of the approved test laboratories and of the administrative departments which grant approval and to which forms certifying approval or refusal or withdrawal of approval, issued in other countries, are to be sent.

| 11.2. | The Parties to the Agreement which apply this Regulation may use laboratories of tyre manufacturers and may designate, as approved test laboratories, those among them which are situated on their territory or on the territory of another Party to the Agreement subject to a preliminary agreement to this procedure by the competent administrative department of the latter. |
| --- | --- |

11.2.

The Parties to the Agreement which apply this Regulation may use laboratories of tyre manufacturers and may designate, as approved test laboratories, those among them which are situated on their territory or on the territory of another Party to the Agreement subject to a preliminary agreement to this procedure by the competent administrative department of the latter.

| 11.3. | Where a Party to the Agreement applies paragraph 11.2 above, it may, if it so desires, be represented at the tests by one or more persons of its choice. |
| --- | --- |

11.3.

Where a Party to the Agreement applies paragraph 11.2 above, it may, if it so desires, be represented at the tests by one or more persons of its choice.

Explanatory figure

Explanatory figure

(see paragraphs 2.2 and 4.1)

Tyre cross Section

Image 5

| Lug (cleat) tread pattern | Circumferential Rib tread pattern |
| --- | --- |
| | |

Lug (cleat) tread pattern

Circumferential Rib tread pattern

Image 6

Image 7

---

(1)  Before 1 January 2000, the date of manufacture may be indicated by a group of three digits, the first two showing the week and the last one the year of manufacture.

1

(2)  1 for Germany, 2 for France, 3 for Italy, 4 for the Netherlands, 5 for Sweden, 6 for Belgium, 7 for Hungary, 8 for the Czech Republic, 9 for Spain, 10 for Serbia, 11 for the United Kingdom, 12 for Austria, 13 for Luxembourg, 14 for Switzerland, 15 (vacant), 16 for Norway, 17 for Finland, 18 for Denmark, 19 for Romania, 20 for Poland, 21 for Portugal, 22 for the Russian Federation, 23 for Greece, 24 for Ireland, 25 for Croatia, 26 for Slovenia, 27 for Slovakia, 28 for Belarus, 29 for Estonia, 30 (vacant), 31 for Bosnia and Herzegovina, 32 for Latvia, 33 (vacant), 34 for Bulgaria, 35 (vacant), 36 for Lithuania, 37 for Turkey, 38 (vacant), 39 for Azerbaijan, 40 for The former Yugoslav Republic of Macedonia, 41 (vacant), 42 for the European Community (Approvals are granted by its Member States using their respective ECE symbol), 43 for Japan, 44 (vacant), 45 for Australia., 46 for Ukraine, 47 for South Africa, 48 for New Zealand, 49 for Cyprus, 50 for Malta, 51 for the Republic of Korea, 52 for Malaysia, 53 for Thailand, 54 and 55 (vacant), 56 for Montenegro, 57 (vacant) and 58 for Tunisia. Subsequent numbers shall be assigned to other countries in the chronological order in which they ratify or accede to the Agreement Concerning the Adoption of Uniform Technical Prescriptions for Wheeled Vehicles, Equipment and Parts which can be Fitted and/or be Used on Wheeled Vehicles and the Conditions for Reciprocal Recognition of Approvals Granted on the Basis of these Prescriptions, and the numbers thus assigned shall be communicated by the Secretary-General of the United Nations to the Contracting Parties to the Agreement.

2

(3)  Conversion factor from code to mm is 25,4.

3

---

ANNEX 1

COMMUNICATION

(maximum format: A4 (210 × 297 mm))

Image 8

issued by:

Name of administration:

concerning (2):

APPROVAL GRANTED

APPROVAL EXTENDED

APPROVAL REFUSED

APPROVAL WITHDRAWN

PRODUCTION DEFINITELY DISCONTINUED

of a type of pneumatic tyre for motor vehicles pursuant to Regulation No 106

Approval No ...

Extension No ...

1. Manufacturer’s name or trade mark(s) on the tyre: ...

2. Tyre type designation by the manufacturer: ...

3. Manufacturer’s name and address: ...

4. If applicable, name and address of manufacturer’s representative: ...

5. Summarized description:

5.1. Size of tyre: ...

5.2. Category of use: ...

5.3. Structure: diagonal (bias-ply)/bias belted/radial (2)

5.4. Speed category symbol: ...

5.5. Load-capacity index:

5.5.1. for traction (implement only): ...

5.5.2. for trailer (implement only): ...

5.6. Whether the tyre is to be fitted with or without an inner tube

5.7. The supplementary service description, if applicable: ...

6. Technical service and, where applicable, test laboratory approved for purposes of approval or of verification of conformity: ...

7. Date of report issued by that service: ...

8. Number of report issued by that service: ...

9. Reason(s) of extension (if applicable): ...

10. Any remarks: ...

11. Place: ...

12. Date: ...

13. Signature: ...

14. Annexed to this communication is a list of documents in the approval file deposited at the Administrative Services having delivered the approval and which can be obtained upon request.

(1) Distinguishing number of the country which has granted/extended/refused/withdrawn approval (see approval provisions in the Regulation).

(2) Strike out what does not apply.

---

ANNEX 2

ARRANGEMENT OF APPROVAL MARK

Image 9

---

ANNEX 3

ARRANGEMENT OF TYRE MARKINGS

(see paragraphs 3.1 and 3.2)

PART A:   DRIVE WHEEL TYRES FOR AGRICULTURAL TRACTORS

Example of the markings to be borne by types of tyres complying with this Regulation

Image 10

Minimum heights of markings (mm)

| Tyres of Nominal Section Width | TYRES OF RIM DIAMETER CODE |
| --- | --- |
| UP TO 12 | 13 TO 19,5 | 20 AND ABOVE |
| up to 130 | b = 4
  c = 4 | b = 6
  c = 4 | b = 9
  c = 4 |
| 135 to 235 | b = 6
  c = 4 | b = 6
  c = 4 | b = 9
  c = 4 |
| 240 and above | b = 9
  c = 4 | b = 9
  c = 4 | b = 9
  c = 4 |

Tyres of Nominal Section Width

TYRES OF RIM DIAMETER CODE

UP TO 12

13 TO 19,5

20 AND ABOVE

up to 130

b = 4

c = 4

b = 6

c = 4

b = 9

c = 4

135 to 235

b = 6

c = 4

b = 6

c = 4

b = 9

c = 4

240 and above

b = 9

c = 4

b = 9

c = 4

b = 9

c = 4

These markings define a Drive wheel tyre:

| — | having a nominal section width of 360, |
| --- | --- |

—

having a nominal section width of 360,

| — | having a nominal aspect ratio of 70, |
| --- | --- |

—

having a nominal aspect ratio of 70,

| — | of radial ply structure (R), |
| --- | --- |

—

of radial ply structure (R),

| — | having a nominal rim diameter of 610 for which the code is 24, |
| --- | --- |

—

having a nominal rim diameter of 610 for which the code is 24,

| — | having a load capacity of 1 250 kg, corresponding to load index 116 in annex 4, |
| --- | --- |

—

having a load capacity of 1 250 kg, corresponding to load index 116 in annex 4,

| — | classified in the speed category A8 (reference speed 40 km/h), |
| --- | --- |

—

classified in the speed category A8 (reference speed 40 km/h),

| — | allowed to be used additionally at 50 km/h (speed category symbol B) with a load capacity of 1 150 kg corresponding to the load capacity index 113 shown in annex 4, |
| --- | --- |

—

allowed to be used additionally at 50 km/h (speed category symbol B) with a load capacity of 1 150 kg corresponding to the load capacity index 113 shown in annex 4,

| — | for fitting without an inner tube (‘tubeless’), |
| --- | --- |

—

for fitting without an inner tube (‘tubeless’),

| — | having a special tread (‘R-2’), |
| --- | --- |

—

having a special tread (‘R-2’),

| — | manufactured during the twenty-fifth week of the year 2006
  (see paragraph 3.2 of the Regulation). |
| --- | --- |

—

manufactured during the twenty-fifth week of the year 2006

(see paragraph 3.2 of the Regulation).

The positioning and order of the markings constituting the tyre designation are as follows:

| (a) | the size designation, comprising the prefix (if any), the nominal section width, the nominal aspect ratio, the type-of-structure symbol (where applicable) and the nominal rim diameter, must be grouped as shown in the examples:
  360/70 R 24, IF 360/70 R 24, VF 360/70 R 24. |
| --- | --- |

(a)

the size designation, comprising the prefix (if any), the nominal section width, the nominal aspect ratio, the type-of-structure symbol (where applicable) and the nominal rim diameter, must be grouped as shown in the examples:

360/70 R 24, IF 360/70 R 24, VF 360/70 R 24.

| (b) | the service description (load index and the speed category symbol) is placed near the size designation. It may either precede or follow it or be placed above or below it; |
| --- | --- |

(b)

the service description (load index and the speed category symbol) is placed near the size designation. It may either precede or follow it or be placed above or below it;

| (c) | the symbols ‘TUBELESS’, ‘R-2’ or ‘DEEP’, the optional word ‘RADIAL’ and the date of production may be at a distance from the size designation. |
| --- | --- |

(c)

the symbols ‘TUBELESS’, ‘R-2’ or ‘DEEP’, the optional word ‘RADIAL’ and the date of production may be at a distance from the size designation.

| (d) | the marking of the additional Service Description inside the circle may show either the speed category symbol after or below the load index. |
| --- | --- |

(d)

the marking of the additional Service Description inside the circle may show either the speed category symbol after or below the load index.

PART B:   STEERING WHEEL TYRES FOR AGRICULTURAL AND FORESTRY TRACTORS

Example of the markings to be borne by types of tyres complying with this Regulation

Image 11

Minimum heights of markings (mm)

| Tyres of Nominal Section Width | TYRES OF RIM DIAMETER CODE |
| --- | --- |
| UP TO 12 | 13 TO 19,5 | 20 AND ABOVE |
| up to 130 | b = 4
  c = 4 | b = 6
  c = 4 | b = 9
  c = 4 |
| 135 to 235 | b = 6
  c = 4 | b = 6
  c = 4 | b = 9
  c = 4 |
| 240 and above | b = 9
  c = 4 | b = 9
  c = 4 | b = 9
  c = 4 |

Tyres of Nominal Section Width

TYRES OF RIM DIAMETER CODE

UP TO 12

13 TO 19,5

20 AND ABOVE

up to 130

b = 4

c = 4

b = 6

c = 4

b = 9

c = 4

135 to 235

b = 6

c = 4

b = 6

c = 4

b = 9

c = 4

240 and above

b = 9

c = 4

b = 9

c = 4

b = 9

c = 4

These markings define a steering wheel tyre:

| — | having a nominal section width of 250, |
| --- | --- |

—

having a nominal section width of 250,

| — | having a nominal aspect ratio of 70, |
| --- | --- |

—

having a nominal aspect ratio of 70,

| — | of radial-ply structure (R), |
| --- | --- |

—

of radial-ply structure (R),

| — | having a nominal rim diameter of 405 mm, for which the code is 16, designed for the equipment of non-driven steering axles of agricultural tractors (FRONT), |
| --- | --- |

—

having a nominal rim diameter of 405 mm, for which the code is 16, designed for the equipment of non-driven steering axles of agricultural tractors (FRONT),

| — | having load capacities of 925 kg, corresponding to the load capacity index 105 shown in annex 4, |
| --- | --- |

—

having load capacities of 925 kg, corresponding to the load capacity index 105 shown in annex 4,

| — | classified in the nominal speed category A6 (reference speed 30 km/h), |
| --- | --- |

—

classified in the nominal speed category A6 (reference speed 30 km/h),

| — | for fitting without an inner tube ‘tubeless’, and, |
| --- | --- |

—

for fitting without an inner tube ‘tubeless’, and,

| — | manufactured during the twenty-fifth week of the year 2006
  (see paragraph 3.2 of the Regulation). |
| --- | --- |

—

manufactured during the twenty-fifth week of the year 2006

(see paragraph 3.2 of the Regulation).

The positioning and order of the markings constituting the tyre designation are as follows:

| (a) | the size designation, comprising the nominal section width, the nominal aspect ratio, the type-of-structure symbol (where applicable), the nominal rim diameter and, optionally the letters ‘FRONT’, must be grouped as shown in the above example: 250/70 R 16 FRONT; |
| --- | --- |

(a)

the size designation, comprising the nominal section width, the nominal aspect ratio, the type-of-structure symbol (where applicable), the nominal rim diameter and, optionally the letters ‘FRONT’, must be grouped as shown in the above example: 250/70 R 16 FRONT;

| (b) | the service description (the load index and the speed category symbol) is placed together near the size designation. It may either precede or follow it or be placed above or below it; |
| --- | --- |

(b)

the service description (the load index and the speed category symbol) is placed together near the size designation. It may either precede or follow it or be placed above or below it;

| (c) | the symbol ‘TUBELESS’, the optional word ‘RADIAL’, the optional symbol ‘F-1’, and the date of manufacture may be at a distance from the size designation. |
| --- | --- |

(c)

the symbol ‘TUBELESS’, the optional word ‘RADIAL’, the optional symbol ‘F-1’, and the date of manufacture may be at a distance from the size designation.

PART C:   IMPLEMENT TYRES

Example of the markings to be borne by types of tyres complying with this Regulation

Image 12

Minimum heights of markings (mm)

| Tyres of Nominal Section Width | TYRES OF RIM DIAMETER CODE |
| --- | --- |
| UP TO 12 | 13 TO 19,5 | 20 AND ABOVE |
| up to 130 | b = 4
  c = 4
  d = 7 | b = 6
  c = 4
  d = 12 | b = 9
  c = 4
  d = 12 |
| 135 to 235 | b = 6
  c = 4
  d = 12 | b = 6
  c = 4
  d = 12 | b = 9
  c = 4
  d = 12 |
| 240 and above | b = 9
  c = 4
  d = 12 | b = 9
  c = 4
  d = 12 | b = 9
  c = 4
  d = 12 |

Tyres of Nominal Section Width

TYRES OF RIM DIAMETER CODE

UP TO 12

13 TO 19,5

20 AND ABOVE

up to 130

b = 4

c = 4

d = 7

b = 6

c = 4

d = 12

b = 9

c = 4

d = 12

135 to 235

b = 6

c = 4

d = 12

b = 6

c = 4

d = 12

b = 9

c = 4

d = 12

240 and above

b = 9

c = 4

d = 12

b = 9

c = 4

d = 12

b = 9

c = 4

d = 12

These markings define an implement tyre:

| — | having a nominal section width of 250, |
| --- | --- |

—

having a nominal section width of 250,

| — | having a nominal aspect ratio of 70, |
| --- | --- |

—

having a nominal aspect ratio of 70,

| — | of radial-ply structure (R), |
| --- | --- |

—

of radial-ply structure (R),

| — | having a nominal rim diameter of 508 mm, for which the code is 20, |
| --- | --- |

—

having a nominal rim diameter of 508 mm, for which the code is 20,

| — | designed primarily for the equipment of implements, agricultural machinery or agricultural trailers (IMP), |
| --- | --- |

—

designed primarily for the equipment of implements, agricultural machinery or agricultural trailers (IMP),

| — | having load capacities of 690 kg corresponding to the load capacity index 95 shown in annex 4 when used on driven axles (traction application), as identified by the appropriate symbol, |
| --- | --- |

—

having load capacities of 690 kg corresponding to the load capacity index 95 shown in annex 4 when used on driven axles (traction application), as identified by the appropriate symbol,

| — | having load capacities of 1 000 kg when used on non-driven axles (trailer application) corresponding to the load capacity index 108 shown in annex 4, as identified by the appropriate symbol, |
| --- | --- |

—

having load capacities of 1 000 kg when used on non-driven axles (trailer application) corresponding to the load capacity index 108 shown in annex 4, as identified by the appropriate symbol,

| — | both applications being classified in the nominal speed category A6 (reference speed 30 km/h), |
| --- | --- |

—

both applications being classified in the nominal speed category A6 (reference speed 30 km/h),

| — | for fitting without an inner tube ‘tubeless’, and |
| --- | --- |

—

for fitting without an inner tube ‘tubeless’, and

| — | manufactured during the twenty-fifth week of the year 2006
  (see paragraph 3.2 of the Regulation). |
| --- | --- |

—

manufactured during the twenty-fifth week of the year 2006

(see paragraph 3.2 of the Regulation).

The positioning and order of the markings constituting the tyre designation are as follows:

| (a) | the size designation, comprising the nominal section width, the nominal aspect ratio, the type-of-structure symbol (where applicable), the nominal rim diameter and optionally the letters ‘IMP’ must be grouped as shown in the above example: 250/70 R 20 IMP; |
| --- | --- |

(a)

the size designation, comprising the nominal section width, the nominal aspect ratio, the type-of-structure symbol (where applicable), the nominal rim diameter and optionally the letters ‘IMP’ must be grouped as shown in the above example: 250/70 R 20 IMP;

| (b) | the service description (the load index and the speed category symbol) and the relevant type of application symbol are placed together near the size designation. They may either precede or follow it or be placed above or below it; |
| --- | --- |

(b)

the service description (the load index and the speed category symbol) and the relevant type of application symbol are placed together near the size designation. They may either precede or follow it or be placed above or below it;

| (c) | the symbol ‘TUBELESS’, I-3 if any, the optional word ‘RADIAL’, the optional word ‘IMPLEMENT’ and the date of manufacture may be at a distance from the size designation. |
| --- | --- |

(c)

the symbol ‘TUBELESS’, I-3 if any, the optional word ‘RADIAL’, the optional word ‘IMPLEMENT’ and the date of manufacture may be at a distance from the size designation.

PART D:   TYRES FOR FORESTRY MACHINES

Example of the markings to be borne by types of tyres complying with this Regulation

Image 13

| MINIMUM HEIGHTS OF MARKINGS: | b: 9 mm | c: 4 mm |
| --- | --- | --- |

MINIMUM HEIGHTS OF MARKINGS:

b: 9 mm

c: 4 mm

These markings define a tyre for forestry machines (LS):

| (a) | having a nominal section width of 600, |
| --- | --- |

(a)

having a nominal section width of 600,

| (b) | having a nominal aspect ratio of 55, |
| --- | --- |

(b)

having a nominal aspect ratio of 55,

| (c) | of diagonal ply structure (-), |
| --- | --- |

(c)

of diagonal ply structure (-),

| (d) | having a nominal rim diameter of 673 mm for which the code is 26,5, |
| --- | --- |

(d)

having a nominal rim diameter of 673 mm for which the code is 26,5,

| (e) | having an intermediate tread (‘LS-2’), |
| --- | --- |

(e)

having an intermediate tread (‘LS-2’),

| (f) | having a load capacity of 3 750 kg, corresponding to load index 154 in Annex 4, |
| --- | --- |

(f)

having a load capacity of 3 750 kg, corresponding to load index 154 in Annex 4,

| (g) | classified in the speed category A8 (reference speed 40 km/h), |
| --- | --- |

(g)

classified in the speed category A8 (reference speed 40 km/h),

| (h) | for fitting without an inner tube (‘tubeless’), |
| --- | --- |

(h)

for fitting without an inner tube (‘tubeless’),

| (i) | manufactured during the twenty-fifth week of the year 2006 (see paragraph 3.2 of the Regulation). |
| --- | --- |

(i)

manufactured during the twenty-fifth week of the year 2006 (see paragraph 3.2 of the Regulation).

The positioning and order of the markings constituting the tyre designation are as follows:

| (a) | the size designation, comprising the nominal section width, the nominal aspect ratio, the type of structure symbol (where applicable) and the nominal rim diameter, must be grouped as shown in the above example: 600/55 – 26,5; |
| --- | --- |

(a)

the size designation, comprising the nominal section width, the nominal aspect ratio, the type of structure symbol (where applicable) and the nominal rim diameter, must be grouped as shown in the above example: 600/55 – 26,5;

| (b) | the inscription ‘LS’, followed by the number 1, 2, 3 or 4 as appropriate, is placed after the size designation, as shown in the above example: LS-2; |
| --- | --- |

(b)

the inscription ‘LS’, followed by the number 1, 2, 3 or 4 as appropriate, is placed after the size designation, as shown in the above example: LS-2;

| (c) | the service description (load index and the speed category symbol) is placed near the size designation. It may either precede or follow it or be placed above or below it; |
| --- | --- |

(c)

the service description (load index and the speed category symbol) is placed near the size designation. It may either precede or follow it or be placed above or below it;

| (d) | the symbols ‘TUBELESS’ and the date of production may be at a distance from the size designation. |
| --- | --- |

(d)

the symbols ‘TUBELESS’ and the date of production may be at a distance from the size designation.

---

ANNEX 4

List of load capacity indices (LI) and corresponding maximum mass to be carried (kg)

(see paragraph 2.28)

| LI | kg |
| --- | --- |
| 1 | 46,2 |
| 2 | 47,5 |
| 3 | 48,7 |
| 4 | 50 |
| 5 | 51,5 |
| 6 | 53 |
| 7 | 54,5 |
| 8 | 56 |
| 9 | 58 |
| 10 | 60 |
| 11 | 61,5 |
| 12 | 63 |
| 13 | 65 |
| 14 | 67 |
| 15 | 69 |
| 16 | 71 |
| 17 | 73 |
| 18 | 75 |
| 19 | 77,5 |
| 20 | 80 |
| 21 | 82,5 |
| 22 | 85 |
| 23 | 87,5 |
| 24 | 90 |
| 25 | 92,5 |
| 26 | 95 |
| 27 | 97,5 |
| 28 | 100 |
| 29 | 103 |
| 30 | 106 |
| 31 | 109 |
| 32 | 112 |
| 33 | 115 |
| 34 | 118 |
| 35 | 121 |
| 36 | 125 |
| 37 | 128 |
| 38 | 132 |
| 39 | 136 |
| 40 | 140 |
| 41 | 145 |
| 42 | 150 |
| 43 | 155 |
| 44 | 160 |
| 45 | 165 |
| 46 | 170 |
| 47 | 175 |
| 48 | 180 |
| 49 | 185 |
| 50 | 190 |
| 51 | 195 |
| 52 | 200 |
| 53 | 206 |
| 54 | 212 |
| 55 | 218 |
| 56 | 224 |
| 57 | 230 |
| 58 | 236 |
| 59 | 243 |
| 60 | 250 |
| 61 | 257 |
| 62 | 265 |
| 63 | 272 |
| 64 | 280 |
| 65 | 290 |
| 66 | 300 |
| 67 | 307 |
| 68 | 315 |
| 69 | 325 |
| 70 | 335 |
| 71 | 345 |
| 72 | 355 |
| 73 | 365 |
| 74 | 375 |
| 75 | 387 |
| 76 | 400 |
| 77 | 412 |
| 78 | 425 |
| 79 | 437 |
| 80 | 450 |
| 81 | 462 |
| 82 | 475 |
| 83 | 487 |
| 84 | 500 |
| 85 | 515 |
| 86 | 530 |
| 87 | 545 |
| 88 | 560 |
| 89 | 580 |
| 90 | 600 |
| 91 | 615 |
| 92 | 630 |
| 93 | 650 |
| 94 | 670 |
| 95 | 690 |
| 96 | 710 |
| 97 | 730 |
| 98 | 750 |
| 99 | 775 |
| 100 | 800 |
| 101 | 825 |
| 102 | 850 |
| 103 | 875 |
| 104 | 900 |
| 105 | 925 |
| 106 | 950 |
| 107 | 975 |
| 108 | 1 000 |
| 109 | 1 030 |
| 110 | 1 060 |
| 111 | 1 090 |
| 112 | 1 120 |
| 113 | 1 150 |
| 114 | 1 180 |
| 115 | 1 215 |
| 116 | 1 250 |
| 117 | 1 285 |
| 118 | 1 320 |
| 119 | 1 360 |
| 120 | 1 400 |
| 121 | 1 450 |
| 122 | 1 500 |
| 123 | 1 550 |
| 124 | 1 600 |
| 125 | 1 650 |
| 126 | 1 700 |
| 127 | 1 750 |
| 128 | 1 800 |
| 129 | 1 850 |
| 130 | 1 900 |
| 131 | 1 950 |
| 132 | 2 000 |
| 133 | 2 060 |
| 134 | 2 120 |
| 135 | 2 180 |
| 136 | 2 240 |
| 137 | 2 300 |
| 138 | 2 360 |
| 139 | 2 430 |
| 140 | 2 500 |
| 141 | 2 575 |
| 142 | 2 650 |
| 143 | 2 725 |
| 144 | 2 800 |
| 145 | 2 900 |
| 146 | 3 000 |
| 147 | 3 075 |
| 148 | 3 150 |
| 149 | 3 250 |
| 150 | 3 350 |
| 151 | 3 450 |
| 152 | 3 550 |
| 153 | 3 650 |
| 154 | 3 750 |
| 155 | 3 875 |
| 156 | 4 000 |
| 157 | 4 125 |
| 158 | 4 250 |
| 159 | 4 375 |
| 160 | 4 500 |
| 161 | 4 625 |
| 162 | 4 750 |
| 163 | 4 875 |
| 164 | 5 000 |
| 165 | 5 150 |
| 166 | 5 300 |
| 167 | 5 450 |
| 168 | 5 600 |
| 169 | 5 800 |
| 170 | 6 000 |
| 171 | 6 150 |
| 172 | 6 300 |
| 173 | 6 500 |
| 174 | 6 700 |
| 175 | 6 900 |
| 176 | 7 100 |
| 177 | 7 300 |
| 178 | 7 500 |
| 179 | 7 750 |
| 180 | 8 000 |
| 181 | 8 250 |
| 182 | 8 500 |
| 183 | 8 750 |
| 184 | 9 000 |
| 185 | 9 250 |
| 186 | 9 500 |
| 187 | 9 750 |
| 188 | 10 000 |
| 189 | 10 300 |
| 190 | 10 600 |
| 191 | 10 900 |
| 192 | 11 200 |
| 193 | 11 500 |
| 194 | 11 800 |
| 195 | 12 150 |
| 196 | 12 500 |
| 197 | 12 850 |
| 198 | 13 200 |
| 199 | 13 600 |
| 200 | 14 000 |

LI

kg

1

46,2

2

47,5

3

48,7

4

50

5

51,5

6

53

7

54,5

8

56

9

58

10

60

11

61,5

12

63

13

65

14

67

15

69

16

71

17

73

18

75

19

77,5

20

80

21

82,5

22

85

23

87,5

24

90

25

92,5

26

95

27

97,5

28

100

29

103

30

106

31

109

32

112

33

115

34

118

35

121

36

125

37

128

38

132

39

136

40

140

41

145

42

150

43

155

44

160

45

165

46

170

47

175

48

180

49

185

50

190

51

195

52

200

53

206

54

212

55

218

56

224

57

230

58

236

59

243

60

250

61

257

62

265

63

272

64

280

65

290

66

300

67

307

68

315

69

325

70

335

71

345

72

355

73

365

74

375

75

387

76

400

77

412

78

425

79

437

80

450

81

462

82

475

83

487

84

500

85

515

86

530

87

545

88

560

89

580

90

600

91

615

92

630

93

650

94

670

95

690

96

710

97

730

98

750

99

775

100

800

101

825

102

850

103

875

104

900

105

925

106

950

107

975

108

1 000

109

1 030

110

1 060

111

1 090

112

1 120

113

1 150

114

1 180

115

1 215

116

1 250

117

1 285

118

1 320

119

1 360

120

1 400

121

1 450

122

1 500

123

1 550

124

1 600

125

1 650

126

1 700

127

1 750

128

1 800

129

1 850

130

1 900

131

1 950

132

2 000

133

2 060

134

2 120

135

2 180

136

2 240

137

2 300

138

2 360

139

2 430

140

2 500

141

2 575

142

2 650

143

2 725

144

2 800

145

2 900

146

3 000

147

3 075

148

3 150

149

3 250

150

3 350

151

3 450

152

3 550

153

3 650

154

3 750

155

3 875

156

4 000

157

4 125

158

4 250

159

4 375

160

4 500

161

4 625

162

4 750

163

4 875

164

5 000

165

5 150

166

5 300

167

5 450

168

5 600

169

5 800

170

6 000

171

6 150

172

6 300

173

6 500

174

6 700

175

6 900

176

7 100

177

7 300

178

7 500

179

7 750

180

8 000

181

8 250

182

8 500

183

8 750

184

9 000

185

9 250

186

9 500

187

9 750

188

10 000

189

10 300

190

10 600

191

10 900

192

11 200

193

11 500

194

11 800

195

12 150

196

12 500

197

12 850

198

13 200

199

13 600

200

14 000

---

ANNEX 5

Theoretical rim, outer diameter and nominal section width of tyres of certain size designations

Table 1

Agricultural Steering Wheels — Normal and Low Section Sizes

| Tyre size Designation | Theoretical rim width code (A1) | Nominal section Width (S1)
  (mm) | Overall diameter (D)
  (mm) | Nominal rim Diameter (d)
  (mm) |
| --- | --- | --- | --- | --- |
| 4,00 - 9 | 3 | 112 | 460 | 229 |
| 4,00 - 12 | 3 | 112 | 535 | 305 |
| 4,00 - 15 | 3 | 112 | 610 | 381 |
| 4,00 - 16 | 3 | 112 | 630 | 406 |
| 4,00 - 19 | 3 | 112 | 712 | 483 |
| 4,50 - 10 | 3 | 121 | 505 | 254 |
| 4,50 - 16 | 3 | 122 | 655 | 406 |
| 4,50 - 19 | 3 | 122 | 736 | 483 |
| 5,00 - 10 | 3 | 130 | 530 | 254 |
| 5,00 - 12 | 3 | 130 | 580 | 305 |
| 5,00 - 15 | 4 | 140 | 655 | 381 |
| 5,00 - 16 | 4 | 140 | 680 | 406 |
| 5,50 - 16 | 4 | 150 | 710 | 406 |
| 6,00 - 14 | 5 | 169 | 688 | 356 |
| 6,00 - 16 | 4,5 | 165 | 735 | 406 |
| 6,00 - 18 | 4 | 160 | 790 | 457 |
| 6,00 - 19 | 4,5 | 165 | 814 | 483 |
| 6,00 - 20 | 4,5 | 165 | 840 | 508 |
| 6,50 - 10 | 4,5 | 175 | 608 | 254 |
| 6,50 - 16 | 4,5 | 175 | 760 | 406 |
| 6,50 - 20 | 4,5 | 175 | 865 | 508 |
| 7,50 - 16 | 5,5 | 205 | 805 | 406 |
| 7,50 - 18 | 5,5 | 205 | 860 | 457 |
| 7,50 - 20 | 5,5 | 205 | 915 | 508 |
| 8,00 - 16 | 5,5 | 211 | 813 | 406 |
| 9,00 - 16 | 6 | 234 | 855 | 406 |
| 9,50 - 20 | 7 | 254 | 978 | 508 |
| 10,00 - 16 | 8 | 274 | 895 | 406 |
| 11,00 - 16 | 10 | 315 | 965 | 406 |
| 11,00 - 24 | 10 | 315 | 1 170 | 610 |
| Low Section Height |
| 7,5L - 15 | 6 | 210 | 745 | 381 |
| 8,25/85 - 15 | 6 | 210 | 745 | 381 |
| 9,5L - 15 | 8 | 240 | 785 | 381 |
| 9,5/85 - 15 | 8 | 240 | 785 | 381 |
| 11L - 15 | 8 | 280 | 815 | 381 |
| 11,5/75 - 15 | 8 | 280 | 815 | 381 |
| 7,5L - 16 | 6 | 208 | 746 | 406 |
| 11L - 16 | 8 | 279 | 840 | 406 |
| 14L - 16,1 | 11 | 360 | 985 | 409 |
| 14,0/80 - 16,1 | 11 | 360 | 985 | 409 |
| 14,5/75 - 16,1 | 11 | 373 | 940 | 409 |
| 16,5L - 16,1 | 14 | 419 | 1 072 | 409 |

Tyre size Designation

Theoretical rim width code (A1)

Nominal section Width (S1)

(mm)

Overall diameter (D)

(mm)

Nominal rim Diameter (d)

(mm)

4,00 - 9

3

112

460

229

4,00 - 12

3

112

535

305

4,00 - 15

3

112

610

381

4,00 - 16

3

112

630

406

4,00 - 19

3

112

712

483

4,50 - 10

3

121

505

254

4,50 - 16

3

122

655

406

4,50 - 19

3

122

736

483

5,00 - 10

3

130

530

254

5,00 - 12

3

130

580

305

5,00 - 15

4

140

655

381

5,00 - 16

4

140

680

406

5,50 - 16

4

150

710

406

6,00 - 14

5

169

688

356

6,00 - 16

4,5

165

735

406

6,00 - 18

4

160

790

457

6,00 - 19

4,5

165

814

483

6,00 - 20

4,5

165

840

508

6,50 - 10

4,5

175

608

254

6,50 - 16

4,5

175

760

406

6,50 - 20

4,5

175

865

508

7,50 - 16

5,5

205

805

406

7,50 - 18

5,5

205

860

457

7,50 - 20

5,5

205

915

508

8,00 - 16

5,5

211

813

406

9,00 - 16

6

234

855

406

9,50 - 20

7

254

978

508

10,00 - 16

8

274

895

406

11,00 - 16

10

315

965

406

11,00 - 24

10

315

1 170

610

Low Section Height

7,5L - 15

6

210

745

381

8,25/85 - 15

6

210

745

381

9,5L - 15

8

240

785

381

9,5/85 - 15

8

240

785

381

11L - 15

8

280

815

381

11,5/75 - 15

8

280

815

381

7,5L - 16

6

208

746

406

11L - 16

8

279

840

406

14L - 16,1

11

360

985

409

14,0/80 - 16,1

11

360

985

409

14,5/75 - 16,1

11

373

940

409

16,5L - 16,1

14

419

1 072

409

Notes:

| 1. | Agricultural steering wheels tyres are identified either by suffix ‘Front’ placed after the Tyre size designation (e.g. 4,00 - 9 Front) or by one of the following additional markings added to the Tyre sidewalls: ‘F–1’ or ‘F–2’. |
| --- | --- |

1.

| 2. | Tyres of radial structure are identified by means of the letter ‘R’ in place of ‘-’ (e.g. 4.00R9) |
| --- | --- |

2.

Table 2 (1 of 3)

Drive wheel Tyres for agricultural tractors — Normal Section Sizes

| Tyre size Designation | Theoretical rim width code (A1) | Nominal section Width (S1)
  (mm) | Overall Diameter (D)
  (mm) | Nominal rim Diameter (d)
  (mm) |
| --- | --- | --- | --- | --- |
| Radial | Diagonal | Radial | Diagonal |
| 4,00 - 7 | 3 | | 112 | | 410 | 178 |
| 4,00 - 8 | 3 | | 112 | | 435 | 203 |
| 4,00 - 9 | 3 | | 112 | | 460 | 229 |
| 4,00-10 | 3 | | 112 | | 485 | 254 |
| 4,00-12 | 3 | | 112 | | 535 | 305 |
| 4,00-18 | 3 | | 112 | | 690 | 457 |
| 4,00-12 | 3 | | 121 | | 505 | 254 |
| 5,0 -10 | 4 | | 135 | | 505 | 254 |
| 5,00-10 | 3 | | 130 | | 530 | 254 |
| 5,00-12 | 4 | | 145 | | 580 | 305 |
| 5,00-15 | 4 | | 145 | | 645 | 381 |
| 6,00-12 | 4 | | 160 | | 635 | 305 |
| 6,00-16 | 4 | | 160 | | 735 | 406 |
| 6,5-15 | 5 | | 167 | | 685 | 381 |
| 6,50-16 | 5 | | 175 | | 760 | 406 |
| 7,50-18 | 5,5 | | 205 | | 860 | 457 |
| 8,00-20 | 6 | | 220 | | 965 | 508 |
| 5-12 | 4 | | 127 | | 545 | 305 |
| 5-14 | 4 | | 127 | | 595 | 356 |
| 5-26 | 4 | | 127 | | 900 | 660 |
| 6-10 | 5 | | 157 | | 550 | 254 |
| 6-12 | 5 | | 157 | | 600 | 305 |
| 6-14 | 5 | | 157 | | 650 | 356 |
| 7-14 | 5 | | 173 | | 690 | 356 |
| 7-16 | 6 | | 183 | | 740 | 406 |
| 8-16 | 6 | | 201 | | 790 | 406 |
| 8-18 | 7 | | 211 | | 840 | 457 |
| 7,2-20 | 6 | | 183 | | 845 | 508 |
| 7,2-24 | 6 | | 183 | | 945 | 610 |
| 7,2-30 | 6 | | 183 | | 1 095 | 762 |
| 7,2-36 | 6 | | 183 | | 1 250 | 914 |
| 7,2-40 | 6 | | 183 | | 1 350 | 1 016 |
| 8,3-16 | 7 | | 211 | | 790 | 406 |
| 8,3-20 | 7 | | 211 | | 890 | 508 |
| 8,3-22 | 7 | | 211 | | 940 | 559 |
| 8,3-24 | 7 | 211 | 211 | 985 | 995 | 610 |
| 8,3-26 | 7 | | 211 | | 1 045 | 660 |
| 8,3-28 | 7 | | 211 | | 1 095 | 711 |
| 8,3-32 | 7 | 211 | 211 | 1 190 | 1 195 | 813 |
| 8,3-36 | 7 | 211 | 211 | 1 290 | 1 300 | 914 |
| 8,3-38 | 7 | | 211 | | 1 350 | 965 |
| 8,3-42 | 7 | 211 | 211 | 1 440 | 1 450 | 1 067 |
| 8,3-44 | 7 | 211 | 211 | 1 495 | 1 500 | 1 118 |
| 9,5-16 | 8 | | 241 | | 845 | 406 |
| 9,5-18 | 8 | | 241 | | 895 | 457 |
| 9,5-20 | 8 | 241 | 241 | 940 | 945 | 508 |
| 9,5-22 | 8 | | 241 | | 995 | 559 |
| 9,5-24 | 8 | 241 | 241 | 1 040 | 1 050 | 610 |
| 9,5-26 | 8 | | 241 | | 1 100 | 660 |
| 9,5-28 | 8 | 241 | | 1 140 | | 711 |
| 9,5-32 | 8 | | 241 | | 1 250 | 813 |
| 9,5-36 | 8 | 241 | 241 | 1 345 | 1 355 | 914 |
| 9,5-38 | 8 | | 241 | | 1 405 | 965 |
| 9,5-42 | 8 | | 241 | | 1 505 | 1 067 |
| 9,5-44 | 8 | 241 | 241 | 1 550 | 1 555 | 1 118 |
| 9,5-48 | 8 | 241 | 241 | 1 650 | 1 655 | 1 219 |

Tyre size Designation

Theoretical rim width code (A1)

Nominal section Width (S1)

(mm)

Overall Diameter (D)

(mm)

Nominal rim Diameter (d)

(mm)

Radial

Diagonal

Radial

Diagonal

4,00 - 7

3

112

410

178

4,00 - 8

3

112

435

203

4,00 - 9

3

112

460

229

4,00-10

3

112

485

254

4,00-12

3

112

535

305

4,00-18

3

112

690

457

4,00-12

3

121

505

254

5,0 -10

4

135

505

254

5,00-10

3

130

530

254

5,00-12

4

145

580

305

5,00-15

4

145

645

381

6,00-12

4

160

635

305

6,00-16

4

160

735

406

6,5-15

5

167

685

381

6,50-16

5

175

760

406

7,50-18

5,5

205

860

457

8,00-20

6

220

965

508

5-12

4

127

545

305

5-14

4

127

595

356

5-26

4

127

900

660

6-10

5

157

550

254

6-12

5

157

600

305

6-14

5

157

650

356

7-14

5

173

690

356

7-16

6

183

740

406

8-16

6

201

790

406

8-18

7

211

840

457

7,2-20

6

183

845

508

7,2-24

6

183

945

610

7,2-30

6

183

1 095

762

7,2-36

6

183

1 250

914

7,2-40

6

183

1 350

1 016

8,3-16

7

211

790

406

8,3-20

7

211

890

508

8,3-22

7

211

940

559

8,3-24

7

211

211

985

995

610

8,3-26

7

211

1 045

660

8,3-28

7

211

1 095

711

8,3-32

7

211

211

1 190

1 195

813

8,3-36

7

211

211

1 290

1 300

914

8,3-38

7

211

1 350

965

8,3-42

7

211

211

1 440

1 450

1 067

8,3-44

7

211

211

1 495

1 500

1 118

9,5-16

8

241

845

406

9,5-18

8

241

895

457

9,5-20

8

241

241

940

945

508

9,5-22

8

241

995

559

9,5-24

8

241

241

1 040

1 050

610

9,5-26

8

241

1 100

660

9,5-28

8

241

1 140

711

9,5-32

8

241

1 250

813

9,5-36

8

241

241

1 345

1 355

914

9,5-38

8

241

1 405

965

9,5-42

8

241

1 505

1 067

9,5-44

8

241

241

1 550

1 555

1 118

9,5-48

8

241

241

1 650

1 655

1 219

Table 2 (2 of 3)

Drive wheel Tyres for agricultural tractors — Normal Section Sizes

| Tyre size Designation | Theoretical rim width code (A1) | Nominal section Width (S1)
  (mm) | Overall Diameter (D)
  (mm) | Nominal rim Diameter (d)
  (mm) |
| --- | --- | --- | --- | --- |
| Radial | Diagonal | Radial | Diagonal |
| 11,2-18 | 10 | | 284 | | 955 | 457 |
| 11,2-20 | 10 | 284 | 284 | 995 | 1 005 | 508 |
| 11,2-24 | 10 | 284 | 284 | 1 095 | 1 105 | 610 |
| 11,2-26 | 10 | | 284 | | 1 155 | 660 |
| 11,2-28 | 10 | 284 | 284 | 1 200 | 1 205 | 711 |
| 11,2-36 | 10 | 284 | 284 | 1 400 | 1 410 | 914 |
| 11,2-38 | 10 | 284 | 284 | 1 455 | 1 460 | 965 |
| 11,2-42 | 10 | 284 | | 1 555 | | 1 067 |
| 11,2-44 | 10 | 284 | | 1 610 | | 1 118 |
| 11,2-48 | 10 | 284 | | 1 710 | | 1 219 |
| 12,4-16 | 11 | | 315 | | 956 | 406 |
| 12,4-20 | 11 | 315 | | 1 045 | | 508 |
| 12,4-24 | 11 | 315 | 315 | 1 145 | 1 160 | 610 |
| 12,4-26 | 11 | | 315 | | 1 210 | 660 |
| 12,4-28 | 11 | 315 | 315 | 1 250 | 1 260 | 711 |
| 12,4-30 | 11 | | 315 | | 1 310 | 762 |
| 12,4-32 | 11 | 315 | 315 | 1 350 | 1 360 | 813 |
| 12,4-36 | 11 | 315 | 315 | 1 450 | 1 465 | 914 |
| 12,4-38 | 11 | 315 | 315 | 1 500 | 1 515 | 965 |
| 12,4-42 | 11 | | 315 | | 1 615 | 1 067 |
| 12,4-46 | 11 | 315 | | 1 705 | | 1 168 |
| 12,4-52 | 11 | 315 | | 1 860 | | 1 321 |
| 13,6-16 | 12 | | 345 | | 1 005 | 406 |
| 13,6-24 | 12 | 345 | 345 | 1 190 | 1 210 | 610 |
| 13,6-26 | 12 | 345 | 345 | 1 260 | 1 260 | 660 |
| 13,6-28 | 12 | 345 | 345 | 1 295 | 1 310 | 711 |
| 13,6-36 | 12 | 345 | 345 | 1 500 | 1 515 | 914 |
| 13,6-38 | 12 | 345 | 345 | 1 550 | 1 565 | 965 |
| 13,6-48 | 12 | 345 | | 1 805 | | 1 219 |
| 13,9-36 | 12 | | 353 | | 1 478 | 965 |
| 14,9/80-24 | 12 | | 368 | | 1 215 | 610 |
| 14,9-20 | 13 | | 378 | | 1 165 | 508 |
| 14,9-24 | 13 | 378 | 378 | 1 245 | 1 265 | 610 |
| 14,9-26 | 13 | 378 | 378 | 1 295 | 1 315 | 660 |
| 14,9-28 | 13 | 378 | 378 | 1 350 | 1 365 | 711 |
| 14,9-30 | 13 | 378 | 378 | 1 400 | 1 415 | 762 |
| 14,9-38 | 13 | 378 | 378 | 1 600 | 1 615 | 965 |
| 14,9-46 | 13 | 378 | | 1 824 | | 1 168 |
| 15,5-38 | 14 | 394 | 394 | 1 565 | 1 570 | 965 |
| 16,9-24 | 15 | 429 | 429 | 1 320 | 1 335 | 610 |
| 16,9-26 | 15 | 429 | 429 | 1 370 | 1 385 | 660 |
| 16,9-28 | 15 | 429 | 429 | 1 420 | 1 435 | 711 |
| 16,9-30 | 15 | 429 | 429 | 1 475 | 1 485 | 762 |
| 16,9-34 | 15 | 429 | 429 | 1 575 | 1 585 | 864 |
| 16,9-38 | 15 | 429 | 429 | 1 675 | 1 690 | 965 |
| 16,9-42 | 15 | 429 | | 1 775 | | 1 067 |
| 18,4-16.1 | 16 | | 467 | | 1 137 | 409 |
| 18,4-24 | 16 | 467 | 467 | 1 395 | 1 400 | 610 |
| 18,4-26 | 16 | 467 | 467 | 1 440 | 1 450 | 660 |
| 18,4-28 | 16 | 467 | 467 | 1 490 | 1 501 | 711 |
| 18,4-30 | 16 | 467 | 467 | 1 545 | 1 550 | 762 |
| 18,4-34 | 16 | 467 | 467 | 1 645 | 1 650 | 864 |
| 18,4-38 | 16 | 467 | 467 | 1 750 | 1 750 | 965 |
| 18,4-42 | 16 | 467 | 467 | 1 850 | 1 850 | 1 067 |
| 18,4-46 | 16 | 467 | | 1 958 | | 1 168 |

Tyre size Designation

Theoretical rim width code (A1)

Nominal section Width (S1)

(mm)

Overall Diameter (D)

(mm)

Nominal rim Diameter (d)

(mm)

Radial

Diagonal

Radial

Diagonal

11,2-18

10

284

955

457

11,2-20

10

284

284

995

1 005

508

11,2-24

10

284

284

1 095

1 105

610

11,2-26

10

284

1 155

660

11,2-28

10

284

284

1 200

1 205

711

11,2-36

10

284

284

1 400

1 410

914

11,2-38

10

284

284

1 455

1 460

965

11,2-42

10

284

1 555

1 067

11,2-44

10

284

1 610

1 118

11,2-48

10

284

1 710

1 219

12,4-16

11

315

956

406

12,4-20

11

315

1 045

508

12,4-24

11

315

315

1 145

1 160

610

12,4-26

11

315

1 210

660

12,4-28

11

315

315

1 250

1 260

711

12,4-30

11

315

1 310

762

12,4-32

11

315

315

1 350

1 360

813

12,4-36

11

315

315

1 450

1 465

914

12,4-38

11

315

315

1 500

1 515

965

12,4-42

11

315

1 615

1 067

12,4-46

11

315

1 705

1 168

12,4-52

11

315

1 860

1 321

13,6-16

12

345

1 005

406

13,6-24

12

345

345

1 190

1 210

610

13,6-26

12

345

345

1 260

1 260

660

13,6-28

12

345

345

1 295

1 310

711

13,6-36

12

345

345

1 500

1 515

914

13,6-38

12

345

345

1 550

1 565

965

13,6-48

12

345

1 805

1 219

13,9-36

12

353

1 478

965

14,9/80-24

12

368

1 215

610

14,9-20

13

378

1 165

508

14,9-24

13

378

378

1 245

1 265

610

14,9-26

13

378

378

1 295

1 315

660

14,9-28

13

378

378

1 350

1 365

711

14,9-30

13

378

378

1 400

1 415

762

14,9-38

13

378

378

1 600

1 615

965

14,9-46

13

378

1 824

1 168

15,5-38

14

394

394

1 565

1 570

965

16,9-24

15

429

429

1 320

1 335

610

16,9-26

15

429

429

1 370

1 385

660

16,9-28

15

429

429

1 420

1 435

711

16,9-30

15

429

429

1 475

1 485

762

16,9-34

15

429

429

1 575

1 585

864

16,9-38

15

429

429

1 675

1 690

965

16,9-42

15

429

1 775

1 067

18,4-16.1

16

467

1 137

409

18,4-24

16

467

467

1 395

1 400

610

18,4-26

16

467

467

1 440

1 450

660

18,4-28

16

467

467

1 490

1 501

711

18,4-30

16

467

467

1 545

1 550

762

18,4-34

16

467

467

1 645

1 650

864

18,4-38

16

467

467

1 750

1 750

965

18,4-42

16

467

467

1 850

1 850

1 067

18,4-46

16

467

1 958

1 168

Table 2 (3 of 3)

Drive wheel Tyres for agricultural tractors — Normal and Low Section Sizes

| Tyre size Designation | Theoretical rim width code (A1) | Nominal section Width (S1)
  (mm) | Overall Diameter (D)
  (mm) | Nominal rim Diameter (d)
  (mm) |
| --- | --- | --- | --- | --- |
| Radial | Diagonal | Radial | Diagonal |
| 20,8-34 | 18 | 528 | 528 | 1 735 | 1 735 | 864 |
| 20,8-38 | 18 | 528 | 528 | 1 835 | 1 835 | 965 |
| 20,8-42 | 18 | 528 | 528 | 1 935 | 1 935 | 1 067 |
| 23,1-26 | 20 | 587 | 587 | 1 605 | 1 605 | 660 |
| 23,1-30 | 20 | 587 | 587 | 1 700 | 1 705 | 762 |
| 23,1-34 | 20 | 587 | 587 | 1 800 | 1 805 | 864 |
| 24,5-32 | 21 | 622 | 622 | 1 800 | 1 805 | 813 |
| Low Section Height |
| 7,5L-15 | 6 | | 210 | | 745 | 381 |
| 14,9LR-20 | 13 | 378 | | 1 100 | | 508 |
| 17,5L-24 | 15 | 445 | 445 | 1 241 | 1 265 | 610 |
| 19,5L-24 | 17 | 495 | 495 | 1 314 | 1 339 | 610 |
| 21L-24 | 18 | | 533 | | 1 402 | 610 |
| 28,1-26 | 25 | | 714 | | 1 615 | 660 |
| 28L-26 | 25 | 719 | 714 | 1 607 | 1 615 | 660 |
| 30,5L-32 | 27 | 775 | 775 | 1 820 | 1 820 | 813 |

Tyre size Designation

Theoretical rim width code (A1)

Nominal section Width (S1)

(mm)

Overall Diameter (D)

(mm)

Nominal rim Diameter (d)

(mm)

Radial

Diagonal

Radial

Diagonal

20,8-34

18

528

528

1 735

1 735

864

20,8-38

18

528

528

1 835

1 835

965

20,8-42

18

528

528

1 935

1 935

1 067

23,1-26

20

587

587

1 605

1 605

660

23,1-30

20

587

587

1 700

1 705

762

23,1-34

20

587

587

1 800

1 805

864

24,5-32

21

622

622

1 800

1 805

813

Low Section Height

7,5L-15

6

210

745

381

14,9LR-20

13

378

1 100

508

17,5L-24

15

445

445

1 241

1 265

610

19,5L-24

17

495

495

1 314

1 339

610

21L-24

18

533

1 402

610

28,1-26

25

714

1 615

660

28L-26

25

719

714

1 607

1 615

660

30,5L-32

27

775

775

1 820

1 820

813

Notes:

| 1. | The Tyre size designation may be suplemented by an additional figure: ex: 23,1/18 - 26
  instead of 23,1 - 26. |
| --- | --- |

1.

instead of 23,1 - 26.

| 2. | Tyres of radial structure are identified by means of the letter ‘R’ in place of ‘-’ (e.g. 23.1R26). |
| --- | --- |

2.

| 3. | Coefficient for the calculation of the overall width: + 8 % |
| --- | --- |

3.

Table 3

Drive wheel Tyres for agricultural tractors — Low Section Series

| Tyre size Designation | Theoretical rim width code (A1) | Nominal section Width (S1)
  (mm) | Overall diameter (D)
  (mm) | Nominal rim Diameter (d)
  (mm) |
| --- | --- | --- | --- | --- |
| 11,2/78-28 | 10 | 296 | 1 180 | 711 |
| 12,4/78-28 | 11 | 327 | 1 240 | 711 |
| 12,4/78-36 | 11 | 327 | 1 440 | 914 |
| 13,6/78-28 | 12 | 367 | 1 285 | 711 |
| 13,6/78-36 | 12 | 367 | 1 490 | 914 |
| 14,9/78-28 | 13 | 400 | 1 345 | 711 |
| 16,9/78-28 | 15 | 452 | 1 410 | 711 |
| 16,9/78-30 | 15 | 452 | 1 460 | 762 |
| 16,9/78-34 | 15 | 452 | 1 560 | 864 |
| 16,9/78-38 | 15 | 452 | 1 665 | 965 |
| 18,4/78-30 | 16 | 490 | 1 525 | 762 |
| 18,4/78-38 | 16 | 490 | 1 730 | 965 |

Tyre size Designation

Theoretical rim width code (A1)

Nominal section Width (S1)

(mm)

Overall diameter (D)

(mm)

Nominal rim Diameter (d)

(mm)

11,2/78-28

10

296

1 180

711

12,4/78-28

11

327

1 240

711

12,4/78-36

11

327

1 440

914

13,6/78-28

12

367

1 285

711

13,6/78-36

12

367

1 490

914

14,9/78-28

13

400

1 345

711

16,9/78-28

15

452

1 410

711

16,9/78-30

15

452

1 460

762

16,9/78-34

15

452

1 560

864

16,9/78-38

15

452

1 665

965

18,4/78-30

16

490

1 525

762

18,4/78-38

16

490

1 730

965

Table 4

Drive wheel Tyres for agricultural tractors — Low Section Series

| Tyre size Designation | Theoretical rim width code (A1) | Nominal section Width (S1)
  (mm) | Overall diameter (D)
  (mm) | Nominal rim Diameter (d)
  (mm) |
| --- | --- | --- | --- | --- |
| 300/70R20 | 9 | 295 | 952 | 508 |
| 320/70R20 | 10 | 319 | 982 | 508 |
| 320/70R24 | 10 | 319 | 1 094 | 610 |
| 320/70R28 | 10 | 319 | 1 189 | 711 |
| 360/70R20 | 11 | 357 | 1 042 | 508 |
| 360/70R24 | 11 | 357 | 1 152 | 610 |
| 360/70R28 | 11 | 357 | 1 251 | 711 |
| 380/70R20 | 12 | 380 | 1 082 | 508 |
| 380/70R24 | 12 | 380 | 1 190 | 610 |
| 380/70R28 | 12 | 380 | 1 293 | 711 |
| 420/70R24 | 13 | 418 | 1 248 | 610 |
| 420/70R28 | 13 | 418 | 1 349 | 711 |
| 420/70R30 | 13 | 418 | 1 398 | 762 |
| 480/70R24 | 15 | 479 | 1 316 | 610 |
| 480/70R26 | 15 | 479 | 1 372 | 660 |
| 480/70R28 | 15 | 479 | 1 421 | 711 |
| 480/70R30 | 15 | 479 | 1 478 | 762 |
| 480/70R34 | 15 | 479 | 1 580 | 864 |
| 480/70R38 | 15 | 479 | 1 681 | 965 |
| 520/70R26 | 16 | 516 | 1 456 | 660 |
| 520/70R30 | 16 | 516 | 1 536 | 762 |
| 520/70R34 | 16 | 516 | 1 640 | 864 |
| 520/70R38 | 16 | 516 | 1 749 | 965 |
| 580/70R38 | 18 | 577 | 1 827 | 965 |

Tyre size Designation

Theoretical rim width code (A1)

Nominal section Width (S1)

(mm)

Overall diameter (D)

(mm)

Nominal rim Diameter (d)

(mm)

300/70R20

9

295

952

508

320/70R20

10

319

982

508

320/70R24

10

319

1 094

610

320/70R28

10

319

1 189

711

360/70R20

11

357

1 042

508

360/70R24

11

357

1 152

610

360/70R28

11

357

1 251

711

380/70R20

12

380

1 082

508

380/70R24

12

380

1 190

610

380/70R28

12

380

1 293

711

420/70R24

13

418

1 248

610

420/70R28

13

418

1 349

711

420/70R30

13

418

1 398

762

480/70R24

15

479

1 316

610

480/70R26

15

479

1 372

660

480/70R28

15

479

1 421

711

480/70R30

15

479

1 478

762

480/70R34

15

479

1 580

864

480/70R38

15

479

1 681

965

520/70R26

16

516

1 456

660

520/70R30

16

516

1 536

762

520/70R34

16

516

1 640

864

520/70R38

16

516

1 749

965

580/70R38

18

577

1 827

965

Table 5

Agricultural Implement Tyres — Normal section Sizes

| Tyre size designation | Theoretical rim width code (A1) | Nominal section width (S1) | Overall diameter (D) | Nominal rim diameter (d) |
| --- | --- | --- | --- | --- |
| | (*) |
| (mm) | (mm) | (mm) |
| 125 - 15 IMP | 3,5 | 127 | 590 | | 381 |
| 140 - 6 IMP | 4,5 | 135 | 315 | | 152 |
| 165 - 15 IMP | 4,5 | 167 | 650 | | 381 |
| 2,50 - 4 IMP | 1,75 | 68 | 225 | | 102 |
| 2,75 - 4 IMP | 1,75 | 70 | 234 | | 102 |
| 2,50 - 8 IMP | 1,5 | 68 | 338 | | 203 |
| 3,00 - 4 IMP | 2,5 | 90 | 265 | | 102 |
| 3,00 - 8 IMP | 2,5 | 90 | 367 | | 203 |
| 3,00 - 10 IMP | 2,5 | 90 | 418 | | 254 |
| 3,25 - 8 IMP | 2,10 | 84 | 366 | | 203 |
| 3,25 - 16 IMP | 1,85 | 88 | 590 | | 406 |
| 4,10/3,50-4 IMP | 2,10 | 89 | 272 | | 101 |
| 3,50 - 5 IMP | 3 | 95 | 292 | | 127 |
| 3,50 - 6 IMP | 2,5 | 100 | 343 | | 152 |
| 3,50 - 8 IMP | 2,5 | 100 | 393 | | 203 |
| 3,50 - 16 IMP | 1,85 | 92 | 590 | | 406 |
| 4,00 - 4 IMP | 3 | 114 | 313 | | 102 |
| 4,00 - 5 IMP | 3 | 102 | 310 | | 127 |
| 4,00 - 6 IMP | 3 | 114 | 374 | | 152 |
| 4,00 - 8 IMP | 3 | 112 | 418 | 425 | 203 |
| 4,00 - 9 IMP | 3 | 112 | 443 | 460 | 229 |
| 4,0 - 10 IMP | 3 | 114 | 455 | 465 | 254 |
| 4,00 - 10 IMP | 3 | 114 | 465 | 475 | 254 |
| 4,00 - 12 IMP | 3 | 112 | 519 | 536 | 305 |
| 4,00 - 15 IMP | 3 | 112 | 595 | 612 | 381 |
| 4,00 - 16 IMP | 3 | 114 | 608 | | 406 |
| 4,00 - 18 IMP | 3 | 112 | 672 | 688 | 457 |
| 4,00 - 19 IMP | 3 | 114 | 672 | | 483 |
| 4,00 - 21 IMP | 3 | 112 | 694 | | 533 |
| 4,00/4,50 - 21 IMP | | 110 | 765 | | 533 |
| 4,10 - 4 IMP | 3,25 | 102 | 765 | | 102 |
| 4,10 - 6 IMP | 3,25 | 102 | 268 | | 152 |
| 4,50 - 9 IMP | 3 | 124 | 319 | | 229 |
| 4,50 - 14 IMP | 3 | 124 | 466 | | 356 |
| 4,50 - 16 IMP | 3 | 123 | 593 | | 406 |
| 4,50 - 19 IMP | 3 | 124 | 720 | 733 | 483 |
| 4,80 - 8 IMP | 3,75 | 121 | 423 | 449 | 203 |
| 5,00 - 8 IMP | 4 | 145 | 467 | | 203 |
| 5,00 - 9 IMP | 3,5 | 141 | 497 | | 229 |
| 5,0 - 10 IMP | 4 | 145 | 505 | 517 | 254 |
| 5,0 - 12 IMP | 4 | 145 | 566 | | 305 |
| 5,00 - 12 IMP | 4 | 145 | 567 | 580 | 305 |
| 5,00 - 14 IMP | 4 | 145 | 618 | 631 | 356 |
| 5,0 - 15 IMP | 4 | 145 | 642 | | 381 |
| 5,00 - 15 IMP | 3 | 130 | 639 | 655 | 381 |
| 5,00 - 16 IMP | 4 | 145 | 669 | | 406 |
| 5,00/5,25 - 21 IMP | 3 | 136 | 824 | | 533 |
| 5,50 - 16 IMP | 4 | 150 | 685 | 703 | 406 |
| 5,70 - 12 IMP | 4,5 | 146 | 570 | | 305 |
| 5,70 - 15 IMP | 4,5 | 146 | 647 | | 381 |
| 5,90 - 15 IMP | 4 | 150 | 665 | 681 | 381 |
| 6 - 6 IMP | 4 | 145 | 425 | | 152 |
| 6,00 - 9 IMP | 4,5 | 169 | 543 | 556 | 229 |
| 6 - 12 IMP | 5 | 145 | 585 | | 305 |
| 6,0 - 12 IMP | 5 | 155 | 569 | | 305 |
| 6,00 - 12 IMP | 5 | 152 | 579 | | 305 |
| 6,00 - 16 IMP | 4 | 158 | 712 | 729 | 406 |
| 6,00 - 19 IMP | 4,5 | 169 | 810 | | 483 |
| 6,00 - 20 IMP | 4,5 | 169 | 830 | | 508 |
| 6,40 - 15 IMP | 4,5 | 163 | 684 | | 381 |
| 6,5 - 15 IMP | 5 | 163 | 674 | | 381 |
| 6,50 - 10 IMP | 5 | 178 | 597 | | 254 |
| 6,50 - 16 IMP | 4,5 | 173 | 735 | 754 | 406 |
| 6,50 - 20 IMP | 5 | 176 | 850 | | 508 |
| 6,70 - 15 IMP | 4,5 | 182 | 704 | 720 | 381 |
| 6,90 - 9 IMP | 5,5 | 175 | 545 | | 229 |
| 7,00- 12 IMP | 5 | 187 | 667 | 685 | 305 |
| 7,00 - 14 IMP | 5 | 170 | 691 | | 356 |
| 7,00 - 15 IMP | 5,5 | 200 | 744 | | 381 |
| 7,00 - 16 IMP | 5,5 | 200 | 769 | | 406 |
| 7,00 - 18 IMP | 5,5 | 200 | 820 | | 457 |
| 7,00 - 19 IMP | 5,5 | 200 | 845 | | 483 |
| 7,50 - 10 IMP | 6 | 214 | 634 | 649 | 254 |
| 7,50 - 14 IMP | 5,5 | 194 | 686 | | 356 |
| 7,50 - 15 IMP | 6 | 215 | 808 | | 381 |
| 7,50 - 16 IMP | 5,5 | 202 | 785 | 801 | 406 |
| 7,50 - 18 IMP | 5,5 | 202 | 836 | 852 | 457 |
| 7,50 - 20 IMP | 5,5 | 202 | 887 | 903 | 508 |
| 7,50 - 24 IMP | 5,5 | 202 | 989 | 1 013 | 610 |
| 7,60 - 15 IMP | 5,5 | 193 | 734 | 751 | 381 |
| 8 - 16 IMP | 6 | 211 | 795 | | 406 |
| 8,00 - 6 IMP | 7 | 203 | 452 | | 152 |
| 8,00 - 12 IMP | 5 | 214 | 710 | | 305 |
| 8,00 - 16 IMP | 6 | 206 | 808 | | 406 |
| 8,00 - 19 IMP | 6 | 214 | 888 | | 483 |
| 8,00 - 20 IMP | 6 | 214 | 945 | | 508 |
| 8,25 - 15 IMP | 6,5 | 237 | 835 | | 381 |
| 8,25 - 16 IMP | 6 | 229 | 832 | | 406 |
| 8,25 - 20 IMP | 6 | 229 | 934 | | 508 |
| 9,00 - 10 IMP | 6 | 234 | 696 | | 254 |
| 9,00 - 13 IMP | 5,5 | 247 | 814 | | 330 |
| 9,00- 15 IMP | 5,5 | 247 | 850 | | 381 |
| 9,00 - 16 IMP | 6 | 234 | 48 | | 406 |
| 9,00 - 24 IMP | 8 | 272 | 1 094 | | 610 |
| 10,00 - 12 IMP | 6,5 | 262 | 790 | | 305 |
| 10,00 - 15 IMP | 8 | 274 | 853 | | 381 |
| 10,00 - 16 IMP | 8 | 274 | 895 | | 406 |
| 10,50 - 16 IMP | 6,5 | 280 | 955 | | 406 |
| 11,00 - 12 IMP | 6,5 | 277 | 835 | | 305 |
| 11,00 - 16 IMP | 6,5 | 277 | 937 | | 406 |
| 11,0 - 20 IMP | 9 | 285 | 950 | | 508 |
| 11,25 - 24 IMP | 10 | 325 | 1 171 | | 610 |
| 11,25 - 28 IMP | 10 | 325 | 1 273 | | 711 |
| 11,5 - 24 IMP | 10 | 305 | 1 070 | | 610 |
| 13,50 - 16,1 IMP | 11 | 353 | 1 021 | 1 043 | 409 |
| 14,0 - 24 IMP | 12 | 370 | 1 170 | | 610 |
| 15,0 - 24 IMP | 13 | 400 | 1 210 | | 610 |
| 15,0 - 28 IMP | 13 | 400 | 1 310 | | 711 |
| 17,0 - 28 IMP | 15 | 455 | 1 390 | | 711 |
| 17,0 - 30 IMP | 15 | 455 | 1 440 | | 762 |
| 18,5 - 34 IMP | 16 | 490 | 1 600 | | 864 |
| 20 - 20 IMP | 14 | 520 | 1 270 | | 508 |
| 190-8 IMP | 5,50 | 182 | 430 | | 203 |

Tyre size designation

Theoretical rim width code (A1)

Nominal section width (S1)

Overall diameter (D)

Nominal rim diameter (d)

(*)

(mm)

(mm)

(mm)

125 - 15 IMP

3,5

127

590

381

140 - 6 IMP

4,5

135

315

152

165 - 15 IMP

4,5

167

650

381

2,50 - 4 IMP

1,75

68

225

102

2,75 - 4 IMP

1,75

70

234

102

2,50 - 8 IMP

1,5

68

338

203

3,00 - 4 IMP

2,5

90

265

102

3,00 - 8 IMP

2,5

90

367

203

3,00 - 10 IMP

2,5

90

418

254

3,25 - 8 IMP

2,10

84

366

203

3,25 - 16 IMP

1,85

88

590

406

4,10/3,50-4 IMP

2,10

89

272

101

3,50 - 5 IMP

3

95

292

127

3,50 - 6 IMP

2,5

100

343

152

3,50 - 8 IMP

2,5

100

393

203

3,50 - 16 IMP

1,85

92

590

406

4,00 - 4 IMP

3

114

313

102

4,00 - 5 IMP

3

102

310

127

4,00 - 6 IMP

3

114

374

152

4,00 - 8 IMP

3

112

418

425

203

4,00 - 9 IMP

3

112

443

460

229

4,0 - 10 IMP

3

114

455

465

254

4,00 - 10 IMP

3

114

465

475

254

4,00 - 12 IMP

3

112

519

536

305

4,00 - 15 IMP

3

112

595

612

381

4,00 - 16 IMP

3

114

608

406

4,00 - 18 IMP

3

112

672

688

457

4,00 - 19 IMP

3

114

672

483

4,00 - 21 IMP

3

112

694

533

4,00/4,50 - 21 IMP

110

765

533

4,10 - 4 IMP

3,25

102

765

102

4,10 - 6 IMP

3,25

102

268

152

4,50 - 9 IMP

3

124

319

229

4,50 - 14 IMP

3

124

466

356

4,50 - 16 IMP

3

123

593

406

4,50 - 19 IMP

3

124

720

733

483

4,80 - 8 IMP

3,75

121

423

449

203

5,00 - 8 IMP

4

145

467

203

5,00 - 9 IMP

3,5

141

497

229

5,0 - 10 IMP

4

145

505

517

254

5,0 - 12 IMP

4

145

566

305

5,00 - 12 IMP

4

145

567

580

305

5,00 - 14 IMP

4

145

618

631

356

5,0 - 15 IMP

4

145

642

381

5,00 - 15 IMP

3

130

639

655

381

5,00 - 16 IMP

4

145

669

406

5,00/5,25 - 21 IMP

3

136

824

533

5,50 - 16 IMP

4

150

685

703

406

5,70 - 12 IMP

4,5

146

570

305

5,70 - 15 IMP

4,5

146

647

381

5,90 - 15 IMP

4

150

665

681

381

6 - 6 IMP

4

145

425

152

6,00 - 9 IMP

4,5

169

543

556

229

6 - 12 IMP

5

145

585

305

6,0 - 12 IMP

5

155

569

305

6,00 - 12 IMP

5

152

579

305

6,00 - 16 IMP

4

158

712

729

406

6,00 - 19 IMP

4,5

169

810

483

6,00 - 20 IMP

4,5

169

830

508

6,40 - 15 IMP

4,5

163

684

381

6,5 - 15 IMP

5

163

674

381

6,50 - 10 IMP

5

178

597

254

6,50 - 16 IMP

4,5

173

735

754

406

6,50 - 20 IMP

5

176

850

508

6,70 - 15 IMP

4,5

182

704

720

381

6,90 - 9 IMP

5,5

175

545

229

7,00- 12 IMP

5

187

667

685

305

7,00 - 14 IMP

5

170

691

356

7,00 - 15 IMP

5,5

200

744

381

7,00 - 16 IMP

5,5

200

769

406

7,00 - 18 IMP

5,5

200

820

457

7,00 - 19 IMP

5,5

200

845

483

7,50 - 10 IMP

6

214

634

649

254

7,50 - 14 IMP

5,5

194

686

356

7,50 - 15 IMP

6

215

808

381

7,50 - 16 IMP

5,5

202

785

801

406

7,50 - 18 IMP

5,5

202

836

852

457

7,50 - 20 IMP

5,5

202

887

903

508

7,50 - 24 IMP

5,5

202

989

1 013

610

7,60 - 15 IMP

5,5

193

734

751

381

8 - 16 IMP

6

211

795

406

8,00 - 6 IMP

7

203

452

152

8,00 - 12 IMP

5

214

710

305

8,00 - 16 IMP

6

206

808

406

8,00 - 19 IMP

6

214

888

483

8,00 - 20 IMP

6

214

945

508

8,25 - 15 IMP

6,5

237

835

381

8,25 - 16 IMP

6

229

832

406

8,25 - 20 IMP

6

229

934

508

9,00 - 10 IMP

6

234

696

254

9,00 - 13 IMP

5,5

247

814

330

9,00- 15 IMP

5,5

247

850

381

9,00 - 16 IMP

6

234

48

406

9,00 - 24 IMP

8

272

1 094

610

10,00 - 12 IMP

6,5

262

790

305

10,00 - 15 IMP

8

274

853

381

10,00 - 16 IMP

8

274

895

406

10,50 - 16 IMP

6,5

280

955

406

11,00 - 12 IMP

6,5

277

835

305

11,00 - 16 IMP

6,5

277

937

406

11,0 - 20 IMP

9

285

950

508

11,25 - 24 IMP

10

325

1 171

610

11,25 - 28 IMP

10

325

1 273

711

11,5 - 24 IMP

10

305

1 070

610

13,50 - 16,1 IMP

11

353

1 021

1 043

409

14,0 - 24 IMP

12

370

1 170

610

15,0 - 24 IMP

13

400

1 210

610

15,0 - 28 IMP

13

400

1 310

711

17,0 - 28 IMP

15

455

1 390

711

17,0 - 30 IMP

15

455

1 440

762

18,5 - 34 IMP

16

490

1 600

864

20 - 20 IMP

14

520

1 270

508

190-8 IMP

5,50

182

430

203

Notes:

| 1. | The suffix ‘IMP’ may be replaced by the wording ‘IMPLEMENT’ on the tyre sidewall. |
| --- | --- |

1.

| 2. | Tyres of radial structure are identified by means of the letter ‘R’ in place of ‘-’ (e.g. 7.5 L R 15). |
| --- | --- |

2.

| 3. | Overall diameters (D) in column (*) apply to tyres marked with classification code ‘I-3’ — see paragraph 3.1.8.2. |
| --- | --- |

3.

Table 6 (1 of 2)

Agricultural Implement Tyres — Low Section Sizes

| Tyre size designation | Theoretical rim width code (A1) | Nominal section width (S1)
  (mm) | Overall diameter (D) | Nominal rim diameter (d)
  (mm) |
| --- | --- | --- | --- | --- |
| | (*) |
| (mm) |
| 7,5 L - 15 IMP | 6 | 210 | 745 | | 381 |
| 8,5L - 14 IMP | 6 | 216 | 721 | 735 | 356 |
| 9,5L - 14 IMP | 7 | 241 | 741 | 757 | 356 |
| 9,5L - 15 IMP | 7 | 241 | 767 | 782 | 381 |
| 11L - 14 IMP | 8 | 279 | 752 | 770 | 356 |
| 11L - 15 IMP | 8 | 279 | 777 | 796 | 381 |
| 11L - 16 IMP | 8 | 279 | 803 | 821 | 406 |
| 12,5L - 15 IMP | 10 | 318 | 823 | 845 | 381 |
| 12,5L - 16 IMP | 10 | 318 | 848 | 870 | 406 |
| 14 L - 16,1 IMP | 11 | 356 | 940 | | 409 |
| 16,5L - 16,1 IMP | 14 | 419 | 1 024 | 1 046 | 409 |
| 19 L - 16,1 IMP | 16 | 483 | 1 087 | | 409 |
| 21,5 L - 16,1 IMP | 18 | 546 | 1 130 | | 409 |

Tyre size designation

Theoretical rim width code (A1)

Nominal section width (S1)

(mm)

Overall diameter (D)

Nominal rim diameter (d)

(mm)

(*)

(mm)

7,5 L - 15 IMP

6

210

745

381

8,5L - 14 IMP

6

216

721

735

356

9,5L - 14 IMP

7

241

741

757

356

9,5L - 15 IMP

7

241

767

782

381

11L - 14 IMP

8

279

752

770

356

11L - 15 IMP

8

279

777

796

381

11L - 16 IMP

8

279

803

821

406

12,5L - 15 IMP

10

318

823

845

381

12,5L - 16 IMP

10

318

848

870

406

14 L - 16,1 IMP

11

356

940

409

16,5L - 16,1 IMP

14

419

1 024

1 046

409

19 L - 16,1 IMP

16

483

1 087

409

21,5 L - 16,1 IMP

18

546

1 130

409

Notes:

| 1. | The suffix ‘IMP’ may be replaced by the wording ‘IMPLEMENT’ on the Tyre sidewall. |
| --- | --- |

1.

| 2. | Tyres of radial structure are identified by means of the letter ‘R’ in place of ‘-’ (e.g. 7.5 L R 15). |
| --- | --- |

2.

| 3. | Overall diameters (D) in column (*) apply to tyres marked with classification code ‘I 3’ — see paragraph 3.1.8.2. |
| --- | --- |

3.

Table 6 (2 of 2)

Agricultural Implement Tyres — Low Section Sizes

| Tyre size Designation | Theoretical rim width code (A1) | Nominal section Width (S1)
  (mm) | Overall diameter (D)
  (mm) | Nominal rim Diameter (d)
  (mm) |
| --- | --- | --- | --- | --- |
| | (*) |
| 05/50 - 10 IMP | 7 | 211 | 450 | | 254 |
| 19,0/45 - 17 IMP | 16 | 491 | 866 | | 432 |
| 15,0/55 - 17 IMP | 13 | 391 | 850 | 872 | 432 |
| 10,5/65 - 16 IMP | 9 | 274 | 755 | | 406 |
| 11,0/60 - 16 IMP | 9 | 281 | 742 | | 406 |
| 11,0/65 - 12 IMP | 9 | 281 | 670 | 692 | 305 |
| 13,0/65 - 18 IMP | 11 | 336 | 890 | | 457 |
| 13,0/70 - 16 IMP | 11 | 337 | 890 | | 406 |
| 14,0/65 - 16 IMP | 11 | 353 | 870 | | 406 |
| 9,0/70 - 16 IMP | 7 | 226 | 725 | | 406 |
| 11,5/70 - 16 IMP | 9 | 290 | 815 | | 406 |
| 11,5/70 - 18 IMP | 9 | 290 | 865 | | 457 |
| 15,0/70 - 18 IMP | 13 | 391 | 990 | | 457 |
| 16,0/70 - 20 IMP | 14 | 418 | 1 075 | 1 097 | 508 |
| 16,5/70 - 22.5 IMP | 13 | 417 | 1 158 | | 572 |
| 20,0/70 - 508 IMP | 16 | 508 | 1 220 | | 508 |
| 8,0/75 - 15 IMP | 6,5 | 199 | 710 | | 381 |
| 9,0/75 - 16 IMP | 7 | 226 | 749 | 770 | 406 |
| 10,0/75 - 12 IMP | 9 | 264 | 685 | | 305 |
| 10,0 - 15.3 IMP | 9 | 258 | 785 | | 389 |
| 10,0/75 - 15.3 IMP | 9 | 264 | 760 | 780 | 389 |
| 10,0/75 - 16 IMP | 9 | 264 | 805 | | 406 |
| 12,0/75 - 18 IMP | 9 | 299 | 915 | 937 | 457 |
| 13,0/75 - 16 IMP | 11 | 336 | 900 | | 406 |
| 13,5/75 - 430,9 IMP | 11 | 345 | 945 | | 431 |
| 14,5/75 - 20 IMP | 12 | 372 | 1 060 | | 508 |
| 6,5/80 - 12 IMP | 5 | 163 | 569 | 588 | 305 |
| 6,5/80 - 15 IMP | 5 | 163 | 645 | 663 | 381 |
| 8,50 - 12 IMP | 7 | 235 | 715 | | 305 |
| 10,0/80 - 12 IMP | 9 | 264 | 710 | 730 | 305 |
| 10 - 18 IMP | 9 | 260 | 875 | | 457 |
| 10,5/80 - 18 IMP | 9 | 274 | 885 | 907 | 457 |
| 11,5 - 15,3 IMP | 9 | 295 | 860 | | 389 |
| 11,5/80 - 15,3 IMP | 9 | 290 | 845 | 867 | 389 |
| 12,5/80 - 15,3 IMP | 9 | 307 | 889 | | 389 |
| 12,5/80 - 18 IMP | 9 | 308 | 965 | 987 | 457 |
| 14,5/80 - 18 IMP | 12 | 372 | 1 060 | 1 082 | 457 |
| 15,5/80 - 24 IMP | 13 | 394 | 1 240 | 1 262 | 610 |
| 17,0/80 - 508 IMP | 13 | 426 | 1 200 | | 508 |
| 19,5/80 - 20 IMP | 16 | 499 | 1 300 | | 508 |
| 21,0/80 - 20 IMP | 16 | 525 | 1 362 | | 508 |
| 5,5/85 - 9 IMP | 4 | 145 | 475 | | 229 |
| 10,5/85 - 15,3 IMP | 9 | 274 | 792 | | 389 |
| 13,5/85 - 28 IMP | 11 | 345 | 1 293 | | 711 |
| 16,5/85 - 24 IMP | 13 | 417 | 1 322 | 1 344 | 610 |
| 16,5/85 - 28 IMP | 13 | 417 | 1 423 | 1 445 | 711 |

Tyre size Designation

Theoretical rim width code (A1)

Nominal section Width (S1)

(mm)

Overall diameter (D)

(mm)

Nominal rim Diameter (d)

(mm)

(*)

05/50 - 10 IMP

7

211

450

254

19,0/45 - 17 IMP

16

491

866

432

15,0/55 - 17 IMP

13

391

850

872

432

10,5/65 - 16 IMP

9

274

755

406

11,0/60 - 16 IMP

9

281

742

406

11,0/65 - 12 IMP

9

281

670

692

305

13,0/65 - 18 IMP

11

336

890

457

13,0/70 - 16 IMP

11

337

890

406

14,0/65 - 16 IMP

11

353

870

406

9,0/70 - 16 IMP

7

226

725

406

11,5/70 - 16 IMP

9

290

815

406

11,5/70 - 18 IMP

9

290

865

457

15,0/70 - 18 IMP

13

391

990

457

16,0/70 - 20 IMP

14

418

1 075

1 097

508

16,5/70 - 22.5 IMP

13

417

1 158

572

20,0/70 - 508 IMP

16

508

1 220

508

8,0/75 - 15 IMP

6,5

199

710

381

9,0/75 - 16 IMP

7

226

749

770

406

10,0/75 - 12 IMP

9

264

685

305

10,0 - 15.3 IMP

9

258

785

389

10,0/75 - 15.3 IMP

9

264

760

780

389

10,0/75 - 16 IMP

9

264

805

406

12,0/75 - 18 IMP

9

299

915

937

457

13,0/75 - 16 IMP

11

336

900

406

13,5/75 - 430,9 IMP

11

345

945

431

14,5/75 - 20 IMP

12

372

1 060

508

6,5/80 - 12 IMP

5

163

569

588

305

6,5/80 - 15 IMP

5

163

645

663

381

8,50 - 12 IMP

7

235

715

305

10,0/80 - 12 IMP

9

264

710

730

305

10 - 18 IMP

9

260

875

457

10,5/80 - 18 IMP

9

274

885

907

457

11,5 - 15,3 IMP

9

295

860

389

11,5/80 - 15,3 IMP

9

290

845

867

389

12,5/80 - 15,3 IMP

9

307

889

389

12,5/80 - 18 IMP

9

308

965

987

457

14,5/80 - 18 IMP

12

372

1 060

1 082

457

15,5/80 - 24 IMP

13

394

1 240

1 262

610

17,0/80 - 508 IMP

13

426

1 200

508

19,5/80 - 20 IMP

16

499

1 300

508

21,0/80 - 20 IMP

16

525

1 362

508

5,5/85 - 9 IMP

4

145

475

229

10,5/85 - 15,3 IMP

9

274

792

389

13,5/85 - 28 IMP

11

345

1 293

711

16,5/85 - 24 IMP

13

417

1 322

1 344

610

16,5/85 - 28 IMP

13

417

1 423

1 445

711

Notes:

| 1. | The suffix ‘IMP’ may be replaced by the wording ‘IMPLEMENT’ on the Tyre sidewall. |
| --- | --- |

1.

| 2. | Tyres of radial structure are identified by means of the letter ‘R’ in place of ‘-’ (e.g. 205/50R10) |
| --- | --- |

2.

| 3. | Overall diameters (D) in column (*) apply to tyres marked with classification code ‘I 3’ — see paragraph 3.1.8.2. |
| --- | --- |

3.

Table 7 (1 of 2)

Agricultural High Flotation Tyres

| Tyre size Designation | Theoretical rim width code (A1) | Nominal section Width (S1)
  (mm) | Overall diameter (D)
  (mm) | Nominal rim Diameter (d)
  (mm) |
| --- | --- | --- | --- | --- |
| 9×3,50 - 4 | 2,75 | 91 | 229 | 101 |
| 11×4,00 - 4 | 3,25 | 102 | 280 | 101 |
| 11×4,00 - 5 | 3 | 104 | 272 | 127 |
| 11×7 - 4 | 6 | 185 | 270 | 101 |
| 12×4,00 - 5 | 3 | 112 | 298 | 127 |
| 13×5,00 - 6 | 3,5 | 122 | 320 | 152 |
| 13×6,00-6 | 5 | 154 | 330 | 152 |
| 13×6,00 - 8 | 5 | 154 | 330 | 203 |
| 13×6,50 - 6 | 5 | 163 | 330 | 152 |
| 14×4,50-6 | 3,5 | 113 | 356 | 152 |
| 14×5,00 - 6 | 4 | 127 | 347 | 152 |
| 14×6,00 - 6 | 4,5 | 157 | 340 | 152 |
| 15×6,00 - 6 | 4,5 | 155 | 366 | 152 |
| 16×4,50 - 9 | 3 | 105 | 405 | 229 |
| 16×5,50 - 8 | 4,25 | 142 | 414 | 203 |
| 16×6,50 - 8 | 5,375 | 165 | 405 | 203 |
| 16×7,50 - 8 | 5,375 | 188 | 411 | 203 |
| 17×8,00 - 8 | 7 | 203 | 438 | 203 |
| 17×8,00 - 12 | 7 | 203 | 432 | 305 |
| 18×6,50 - 8 | 5 | 163 | 457 | 203 |
| 18×7,00 - 8 | 5,5 | 178 | 450 | 203 |
| 18×7,50-8 | 6 | 191 | 457 | 203 |
| 18×8,50 - 8 | 7 | 214 | 450 | 203 |
| 18×9,50 - 8 | 7 | 235 | 462 | 203 |
| 19×7,50 - 8 | 5,5 | 180 | 480 | 203 |
| 19×8,00 - 10 | 7 | 203 | 483 | 254 |
| 19×9,50-8 | 7,5 | 240 | 483 | 203 |
| 19×10,00 - 8 | 8,5 | 254 | 483 | 203 |
| 20×8,00-8 | 6,5 | 204 | 508 | 203 |
| 20×8,00 - 10 | 7 | 203 | 500 | 254 |
| 20×9,00-8 | 7 | 227 | 508 | 203 |
| 20×10,00 - 8 | 8 | 254 | 508 | 203 |
| 20×10,00 - 10 | 8,5 | 254 | 508 | 254 |
| 20,5×8,00 - 10 | 6 | 208 | 526 | 254 |
| 21×7,00-10 | 5,5 | 177 | 533 | 254 |
| 21×8,00 - 10 | 7 | 203 | 525 | 254 |
| AT21×7 - 10 | 5,5 | 177 | 533 | 254 |
| 21×11,00 - 8 | 8,5 | 282 | 518 | 203 |
| 21×11,00 - 10 | 9 | 279 | 525 | 254 |
| 22×8,00 - 10 | 6 | 196 | 556 | 254 |
| 22×8,50 - 12 | 7 | 216 | 551 | 305 |
| AT22×9 - 8 | 7 | 227 | 559 | 203 |
| 22×10,00 - 8 | 7 | 244 | 572 | 203 |
| 22×10,00 - 10 | 8,5 | 254 | 559 | 254 |
| 22×11,00 - 8 | 8,5 | 284 | 546 | 203 |
| 22×11,00 - 10 | 8,5 | 254 | 559 | 254 |
| AT23×7 - 10 | 5,5 | 175 | 587 | 254 |
| AT23×8 - 11 | 6,5 | 204 | 584 | 279 |
| 23×8,50 - 12 | 7 | 214 | 575 | 305 |
| 23×9,00 - 12 | 7,5 | 229 | 575 | 305 |
| 23×9,50-12 | 7 | 235 | 577 | 305 |
| 23×10,50 - 12 | 8,5 | 264 | 579 | 305 |
| AT24×8 - 11 | 6,5 | 204 | 610 | 279 |
| AT24×9 - 11 | 7 | 227 | 610 | 279 |
| AT24×10 - 11 | 8 | 254 | 610 | 279 |
| 24×8,50 - 12 | 7 | 213 | 602 | 305 |
| 24×8,50 - 14 | 7 | 213 | 602 | 356 |
| 24×11,00 - 10 | 8,5 | 254 | 607 | 254 |
| 24×12,00-12 | 9,5 | 304 | 610 | 305 |
| 24×13,00 - 12 | 10,5 | 325 | 592 | 305 |
| 25×7,50 - 15 | 5,5 | 191 | 640 | 381 |
| AT25×8 - 12 | 6,5 | 204 | 635 | 305 |
| 25×8,00-12 | 6,5 | 203 | 635 | 305 |
| 25×8,50 - 14 | 7 | 213 | 645 | 356 |
| 25×10,00-12 | 8 | 254 | 635 | 305 |
| 25×10,50 - 15 | 8 | 267 | 640 | 381 |
| 25×11,00-12 | 9 | 279 | 635 | 305 |
| AT25×11 - 9 | 9 | 281 | 635 | 229 |
| AT25×11 - 10 | 8,5 | 262 | 645 | 254 |

Tyre size Designation

Theoretical rim width code (A1)

Nominal section Width (S1)

(mm)

Overall diameter (D)

(mm)

Nominal rim Diameter (d)

(mm)

9×3,50 - 4

2,75

91

229

101

11×4,00 - 4

3,25

102

280

101

11×4,00 - 5

3

104

272

127

11×7 - 4

6

185

270

101

12×4,00 - 5

3

112

298

127

13×5,00 - 6

3,5

122

320

152

13×6,00-6

5

154

330

152

13×6,00 - 8

5

154

330

203

13×6,50 - 6

5

163

330

152

14×4,50-6

3,5

113

356

152

14×5,00 - 6

4

127

347

152

14×6,00 - 6

4,5

157

340

152

15×6,00 - 6

4,5

155

366

152

16×4,50 - 9

3

105

405

229

16×5,50 - 8

4,25

142

414

203

16×6,50 - 8

5,375

165

405

203

16×7,50 - 8

5,375

188

411

203

17×8,00 - 8

7

203

438

203

17×8,00 - 12

7

203

432

305

18×6,50 - 8

5

163

457

203

18×7,00 - 8

5,5

178

450

203

18×7,50-8

6

191

457

203

18×8,50 - 8

7

214

450

203

18×9,50 - 8

7

235

462

203

19×7,50 - 8

5,5

180

480

203

19×8,00 - 10

7

203

483

254

19×9,50-8

7,5

240

483

203

19×10,00 - 8

8,5

254

483

203

20×8,00-8

6,5

204

508

203

20×8,00 - 10

7

203

500

254

20×9,00-8

7

227

508

203

20×10,00 - 8

8

254

508

203

20×10,00 - 10

8,5

254

508

254

20,5×8,00 - 10

6

208

526

254

21×7,00-10

5,5

177

533

254

21×8,00 - 10

7

203

525

254

AT21×7 - 10

5,5

177

533

254

21×11,00 - 8

8,5

282

518

203

21×11,00 - 10

9

279

525

254

22×8,00 - 10

6

196

556

254

22×8,50 - 12

7

216

551

305

AT22×9 - 8

7

227

559

203

22×10,00 - 8

7

244

572

203

22×10,00 - 10

8,5

254

559

254

22×11,00 - 8

8,5

284

546

203

22×11,00 - 10

8,5

254

559

254

AT23×7 - 10

5,5

175

587

254

AT23×8 - 11

6,5

204

584

279

23×8,50 - 12

7

214

575

305

23×9,00 - 12

7,5

229

575

305

23×9,50-12

7

235

577

305

23×10,50 - 12

8,5

264

579

305

AT24×8 - 11

6,5

204

610

279

AT24×9 - 11

7

227

610

279

AT24×10 - 11

8

254

610

279

24×8,50 - 12

7

213

602

305

24×8,50 - 14

7

213

602

356

24×11,00 - 10

8,5

254

607

254

24×12,00-12

9,5

304

610

305

24×13,00 - 12

10,5

325

592

305

25×7,50 - 15

5,5

191

640

381

AT25×8 - 12

6,5

204

635

305

25×8,00-12

6,5

203

635

305

25×8,50 - 14

7

213

645

356

25×10,00-12

8

254

635

305

25×10,50 - 15

8

267

640

381

25×11,00-12

9

279

635

305

AT25×11 - 9

9

281

635

229

AT25×11 - 10

8,5

262

645

254

Table 7 (2 of 2)

Agricultural High Flotation Tyres

| Tyre size Designation | Theoretical rim width code (A1) | Nominal section Width (S1)
  (mm) | Overall diameter (D)
  (mm) | Nominal rim Diameter (d)
  (mm) |
| --- | --- | --- | --- | --- |
| 25×12,00 - 9 | 10 | 305 | 635 | 229 |
| 25×12,50 - 15 | 10 | 310 | 640 | 381 |
| 26×10,00 - 12 | 10 | 310 | 660 | 305 |
| 26×12,00 - 12 | 10 | 310 | 660 | 305 |
| 26×14,00 - 12 | 12 | 356 | 660 | 305 |
| 27×8,50 - 15 | 7 | 214 | 680 | 381 |
| 27×9,50 - 15 | 7 | 229 | 686 | 381 |
| 27×10,50 - 15 | 8,5 | 259 | 691 | 381 |
| 27×10 - 15.3 | 9 | 261 | 685 | 389 |
| 28×9,00 - 15 | 7 | 234 | 710 | 381 |
| 28×13 - 15 | 11,5 | 330 | 711 | 381 |
| 29×12,00 - 15 | 10 | 310 | 742 | 381 |
| 29×12,50 - 15 | 10 | 310 | 742 | 381 |
| 29×13,50 - 15 | 10 | 351 | 742 | 381 |
| 31×11,50 - 15 | 8 | 301 | 793 | 381 |
| 31×12,50 - 15 | 10 | 310 | 792 | 381 |
| 31×13,50 - 15 | 10 | 351 | 782 | 381 |
| 31×13,5 - 15 | 10 | 351 | 782 | 381 |
| 31×15,50 - 15 | 13 | 391 | 792 | 381 |
| 31×15,5 - 15 | 13 | 391 | 792 | 381 |
| 33×12,50 - 15 | 10 | 310 | 843 | 381 |
| 33×15,50 - 15 | 13 | 391 | 843 | 381 |
| 36×13,50 - 15 | 10 | 351 | 909 | 381 |
| 38×14,00 - 20 | 11 | 356 | 991 | 508 |
| 38×18,00 - 20 | 14 | 457 | 991 | 508 |
| 38×20,00 - 16.1 | 16 | 488 | 991 | 409 |
| 41×14,00 - 20 | 11 | 356 | 1 067 | 508 |
| 42×25,00 - 20 | 20,5 | 622 | 1 080 | 508 |
| 43×13,50 - 22 | 10 | 360 | 1 102 | 559 |
| 44×18,00 - 20 | 14 | 457 | 1 143 | 508 |
| 44×41,00 - 20 | 36 | 991 | 1 143 | 508 |
| 48×20,00 - 24 | 15 | 457 | 1 245 | 610 |
| 48×25,00 - 20 | 20,5 | 635 | 1 245 | 508 |
| 48×31,00 - 20 | 26 | 775 | 1 245 | 508 |
| 54×31,00 - 26 | 26 | 775 | 1 397 | 660 |
| 66×43,00 - 25 | 36 | 1 054 | 1 702 | 635 |
| 66×43,00 - 26 | 36 | 1 054 | 1 702 | 660 |
| 66×44,00 - 25 | 36 | 1 118 | 1 702 | 635 |
| 67×34,00 - 25 | 30 | 864 | 1 727 | 635 |
| 67×34,00 - 26 | 30 | 864 | 1 727 | 660 |
| 67×34,00 - 30 | 30 | 864 | 1 727 | 762 |
| 68×50,00 - 32 | 44 | 1 270 | 1 753 | 813 |
| VA73×44,00 - 32 | 36 | 1 118 | 1 880 | 813 |
| DH73×44,00 - 32 | 36 | 1 118 | 1 880 | 813 |
| DH73×50,00-32 | 44 | 1 270 | 1 880 | 813 |

Tyre size Designation

Theoretical rim width code (A1)

Nominal section Width (S1)

(mm)

Overall diameter (D)

(mm)

Nominal rim Diameter (d)

(mm)

25×12,00 - 9

10

305

635

229

25×12,50 - 15

10

310

640

381

26×10,00 - 12

10

310

660

305

26×12,00 - 12

10

310

660

305

26×14,00 - 12

12

356

660

305

27×8,50 - 15

7

214

680

381

27×9,50 - 15

7

229

686

381

27×10,50 - 15

8,5

259

691

381

27×10 - 15.3

9

261

685

389

28×9,00 - 15

7

234

710

381

28×13 - 15

11,5

330

711

381

29×12,00 - 15

10

310

742

381

29×12,50 - 15

10

310

742

381

29×13,50 - 15

10

351

742

381

31×11,50 - 15

8

301

793

381

31×12,50 - 15

10

310

792

381

31×13,50 - 15

10

351

782

381

31×13,5 - 15

10

351

782

381

31×15,50 - 15

13

391

792

381

31×15,5 - 15

13

391

792

381

33×12,50 - 15

10

310

843

381

33×15,50 - 15

13

391

843

381

36×13,50 - 15

10

351

909

381

38×14,00 - 20

11

356

991

508

38×18,00 - 20

14

457

991

508

38×20,00 - 16.1

16

488

991

409

41×14,00 - 20

11

356

1 067

508

42×25,00 - 20

20,5

622

1 080

508

43×13,50 - 22

10

360

1 102

559

44×18,00 - 20

14

457

1 143

508

44×41,00 - 20

36

991

1 143

508

48×20,00 - 24

15

457

1 245

610

48×25,00 - 20

20,5

635

1 245

508

48×31,00 - 20

26

775

1 245

508

54×31,00 - 26

26

775

1 397

660

66×43,00 - 25

36

1 054

1 702

635

66×43,00 - 26

36

1 054

1 702

660

66×44,00 - 25

36

1 118

1 702

635

67×34,00 - 25

30

864

1 727

635

67×34,00 - 26

30

864

1 727

660

67×34,00 - 30

30

864

1 727

762

68×50,00 - 32

44

1 270

1 753

813

VA73×44,00 - 32

36

1 118

1 880

813

DH73×44,00 - 32

36

1 118

1 880

813

DH73×50,00-32

44

1 270

1 880

813

Notes:

| 1. | These Tyres may be classified in categories of use ‘Tractor Drive Wheels’ or ‘Implement’. |
| --- | --- |

1.

| 2. | Implement Tyres are identified either by suffix ‘IMP’ placed after the Tyre size designation (e.g. 11×4.00 - 4 IMP)or by the word ‘IMPLEMENT’ marked on the Tyre sidewalls. |
| --- | --- |

2.

| 3. | Tyres of radial structure are identified by means of the letter ‘R’ in place of ‘-’ (e.g. 11×4.00 R 4). |
| --- | --- |

3.

| 4. | Coefficient ‘b’ for the calculation of the Overall diameter Dmax:






  (a) | 1,12 for tyres with Nominal rim Diameter (d) less than 380 mm; |
| --- | --- | --- |

4.

(a)

1,12 for tyres with Nominal rim Diameter (d) less than 380 mm;

| (b) | 1,10 for tyres with Nominal rim Diameter (d) 381 mm and above. |
| --- | --- |

(b)

1,10 for tyres with Nominal rim Diameter (d) 381 mm and above.

---

ANNEX 6

TEST METHOD FOR MEASURING TYRE DIMENSIONS

| 1. | The tyre shall be mounted on the measuring rim specified by the manufacturer and is inflated to a pressure specified by the manufacturer. |
| --- | --- |

1.

| 1.1. | To seat the beads do not exceed the inflation pressure marked on the tyre sidewalls. |
| --- | --- |

1.1.

| 1.2. | Having properly seated tyre beads on the rim, adjust the pressure to the value specified for tyre measurements. |
| --- | --- |

1.2.

| 2. | The tyre fitted on its rim is conditioned to the ambient temperature of the laboratory for at least 24 hours. |
| --- | --- |

2.

| 3. | The pressure is readjusted to the value specified in paragraph 1. |
| --- | --- |

3.

| 4. | The overall width is measured by calliper at six equally-paced points, account being taken of the thickness of the protective ribs or bands. The highest measurement so obtained is taken as the overall width. |
| --- | --- |

4.

| 5. | The outer diameter is determined by measuring the maximum circumference and dividing the figure so obtained by π (3,1416). |
| --- | --- |

5.

---

ANNEX 7

VARIATION OF LOAD CAPACITY WITH SPEED

(see paragraphs 2.30 and 2.31)

PART A:   DRIVE WHEEL TYRES FOR AGRICULTURAL TRACTORS

Applicable to tyres classified with categories of use: ‘Tractor drive wheel’

(see paragraph 2.20)

Variation of load carrying capacity (%)

| Speed
  (km/h) | Speed category symbol | | |
| --- | --- | --- | --- |
| A2 | A6 (+) | A8 (+) | D (+) | (1) |
| 10 | [0] | +40 | +50 | +50 | | +58 |
| 15 | –6 | +30 | +34 | +34 | +35 |
| 20 | –11 | +20 | +23 | +23 | +27 |
| 25 | –16 | +7 | +11 | +18,5 | +20 |
| 30 | –20 | [0] | +7 | +15 | +14 |
| 35 | –24 | –10 | +3 | +12 | +10 |
| 40 | –27 | –20 | [0] | +9,5 | +6 |
| 45 | — | — | –4 | +7 | +2 |
| 50 | — | — | –9 | +5 | [0] |
| 55 | — | — | — | +3 | — |
| 60 | — | — | — | +1,5 | — |
| 65 | — | — | — | [0] | — |
| 70 | — | — | — | –9 | — |

Speed

(km/h)

Speed category symbol

A2

A6 (+)

A8 (+)

D (+)

(1)

10

[0]

+40

+50

+50

+58

15

–6

+30

+34

+34

+35

20

–11

+20

+23

+23

+27

25

–16

+7

+11

+18,5

+20

30

–20

[0]

+7

+15

+14

35

–24

–10

+3

+12

+10

40

–27

–20

[0]

+9,5

+6

45

—

—

–4

+7

+2

50

—

—

–9

+5

[0]

55

—

—

—

+3

—

60

—

—

—

+1,5

—

65

—

—

—

[0]

—

70

—

—

—

–9

—

The above load/speed variations table does not apply to IF and VF Tyres.

The above load/speed variations apply when the tyre is not subjected to sustained high torque service.

| (+) | For field applications with sustained high torque service the values shown in the line 30 km/h apply. |
| --- | --- |

(+)

| (1) | These percentages apply only in case of tyres listed in annex 5, Table 7 marked with speed category symbol ‘B’. |
| --- | --- |

(1)

PART B:   STEERING WHEEL TYRES FOR AGRICULTURAL AND FORESTRY TRACTORS

Applicable to tyres classified with category of use ‘Tractor steering wheels’ and marked ‘Front’ or ‘F-1’ or ‘F-2’

(see paragraph 2.21)

Variation of load carrying capacity (%)

(see paragraphs 2.30 and 2.31)

| Speed
  (km/h) | Speed category symbol |
| --- | --- |
| A6 | A8 |
| 10 | +50 | +67 |
| 15 | +43 | +50 |
| 20 | +35 | +39 |
| 25 | +15 | +28 |
| 30 | [0] | +11 |
| 35 | –10 | +4 |
| 40 | –20 | [0] |
| 45 | — | –7 |

Speed

(km/h)

Speed category symbol

A6

A8

10

+50

+67

15

+43

+50

20

+35

+39

25

+15

+28

30

[0]

+11

35

–10

+4

40

–20

[0]

45

—

–7

PART C:   IMPLEMENT TYRES

Applicable to tyres classified with categories of use: ‘Implement’ and marked ‘IMP’ or ‘IMPLEMENT’

(see paragraph 2.22)

Variation of load carrying capacity (%)

(see paragraphs 2.30 and 2.31)

| Speed
  (km/h) | Speed category symbol | | |
| --- | --- | --- | --- |
| A4 | A6 | A8 | D | (1) |
| 10 | +20 | +29 | +40 | +80 | | +58 |
| 15 | +12 | +21 | +33 | +73 | +35 |
| 20 | [0] | +14 | +26 | +65 | +27 |
| 25 | –2 | +7 | +19 | +58 | +20 |
| 30 | –5 | [0] | +12 | +51 | +14 |
| 35 | | –5 | +5 | +44 | +10 |
| 40 | | –10 | [0] | +36 | +6 |
| 45 | | | –5 | +29 | +2 |
| 50 | | | –10 | +21 | [0] |
| 55 | | | | +14 | |
| 60 | | | | +7 | |
| 65 | | | | [0] | |
| 70 | | | | –9 | |

Speed

(km/h)

Speed category symbol

A4

A6

A8

D

(1)

10

+20

+29

+40

+80

+58

15

+12

+21

+33

+73

+35

20

[0]

+14

+26

+65

+27

25

–2

+7

+19

+58

+20

30

–5

[0]

+12

+51

+14

35

–5

+5

+44

+10

40

–10

[0]

+36

+6

45

–5

+29

+2

50

–10

+21

[0]

55

+14

60

+7

65

[0]

70

–9

The above load/speed variations apply when the tyre is not subjected to sustained high torque service.

| (1) | These percentages apply only in case of tyres listed in annex 5, Table 7 marked with speed category symbol ‘B’. |
| --- | --- |

(1)

PART D:   TYRES FOR FORESTRY MACHINES

Applicable to tyres classified with categories of use: ‘Forestry machines’

(see paragraph 2.41)

Variation of load carrying capacity (per cent) for tyres marked with speed category symbol A8

| Service Condition | Speed
  (km/h) | per cent |
| --- | --- | --- |
| Road service | 20 | 23 |
| 30 | 7 |
| 40 | [0] |

Service Condition

Speed

(km/h)

per cent

Road service

20

23

30

7

40

[0]

---

ANNEX 8

Test procedure to assess tyre resistance to bursting

1.   PREPARING THE TYRE

| 1.1. | Mount a new tyre on the test equipment. Wheels used for the test shall be suitable to withstand, with no deformation, the highest value of pressure achievable during the test. |
| --- | --- |

1.1.

| 1.2. | Carefully centre the tyre beads on the retention device and adjust the outer distance of the tyre beads to a value corresponding to the width of the rim specified by the manufacturer pursuant to paragraph 4.1.10 of this Regulation. |
| --- | --- |

1.2.

| 1.3. | Fill the tyre with water taking care that all the air inside the tyre is expelled. |
| --- | --- |

1.3.

2.   TEST PROCEDURE

| 2.1. | Activate the apparatus and increase the pressure of the water inside the tyre in order to reach progressively the limit given by two and half times the pressure specified by the tyre manufacturer pursuant to paragraph 4.1.12 of this Regulation; |
| --- | --- |

2.1.

| 2.1.1. | in no case, however, the limit value shall be lower than 6 bar (600 kPa) or higher than 10 bar (1 000 kPa); |
| --- | --- |

2.1.1.

| 2.2. | Maintain constant the value of the pressure for at least 10 minutes. |
| --- | --- |

2.2.

| 2.3. | Decrease, progressively, the pressure of the water to zero and drain the tyre. |
| --- | --- |

2.3.

| 2.4. | Whilst the pressure of the water inside the tyre is higher than the ambient pressure, nobody shall stand inside the test room, that shall be safely locked. |
| --- | --- |

2.4.

3.   EQUIVALENT TEST METHODS

If a method other than that described above is used, its equivalence must be demonstrated.

---

ANNEX 9

LOAD/SPEED TEST PROCEDURE

1.   SCOPE AND RANGE OF APPLICATION

| 1.1. | This test procedure is applicable for new tyres marked with speed catogory symbol ‘D’. |
| --- | --- |

1.1.

| 1.2. | It serves the purpose to assess the suitability of the tyre for the claimed performances. |
| --- | --- |

1.2.

2.   PREPARING THE TYRE

| 2.1. | Mount new tyres on the test rim specified by the manufacturer pursuant to paragraph 4.1.10 of this Regulation. |
| --- | --- |

2.1.

| 2.1.1. | To seat the beads do not exceed the maximum pressure marked on the tyre sidewalls. |
| --- | --- |

2.1.1.

| 2.2. | Use a new inner tube when testing tyres with inner tubes (i.e. tyres not bearing the marking ‘Tubeless’). |
| --- | --- |

2.2.

| 2.3. | With the tyre beads properly seated on the rim, inflate the tyre to the pressure corresponding to the test pressure specified by the tyre manufacturer for the type of test programme, pursuant to paragraph 4.1.15 of this Regulation. |
| --- | --- |

2.3.

| 2.4. | Condition the tyre and wheel assembly at test room temperature for not less than three hours. |
| --- | --- |

2.4.

| 2.5. | Readjust the tyre pressure to that specified in paragraph 2.3 above. |
| --- | --- |

2.5.

| 2.6. | On request of the tyre manufacturer proceed with the test programme as specified in either of the following paragraphs: | test procedure in a laboratory on a test drum (paragraph 3 below), or |
| --- | --- | --- |

2.6.

test procedure in a laboratory on a test drum (paragraph 3 below), or

| | test procedure on a road using a trailer (paragraph 4). |
| --- | --- |

test procedure on a road using a trailer (paragraph 4).

3.   TEST PROCEDURE ON A TEST DRUM

| 3.1. | Mount the tyre and wheel assembly on the test axle and press it against the outer face of a smooth power-driven test drum of at least 1 700 mm ± 1 per cent in diameter having a surface at least as wide as the tyre tread. |
| --- | --- |

3.1.

| 3.1.1. | Drum widths narrower than the tyre tread pattern may be used if the tyre manufacturer agrees. |
| --- | --- |

3.1.1.

| 3.2. | Test drum speed: 20 km/h. |
| --- | --- |

3.2.

| 3.3. | Apply to test axle a series of masses in accordance with the load/speed test programme shown in paragraph 3.4 below, with reference to the test load which equates:






  3.3.1. | the mass corresponding to load index marked on the tyre in case of tyres marked with speed symbol D. |
| --- | --- | --- |

3.3.

3.3.1.

the mass corresponding to load index marked on the tyre in case of tyres marked with speed symbol D.

| 3.4. | Load/speed test programme:








  Tyre speed category symbol | test step | percentage of the test load | duration (hours) |
| --- | --- | --- | --- | --- |
| D | 1 | 66  % | 7 |
| 2 | 84  % | 16 |
| 3 | 101  % | 24 |

3.4.

Tyre speed category symbol

test step

percentage of the test load

duration (hours)

D

1

66  %

7

2

84  %

16

3

101  %

24

| 3.4.1. | In case of a test drum diameter larger than 1 700 mm ± 1 per cent, the above ‘percentage of test load’ shall be increased as follows:
  F1 = K × F2
  where









  R1 | is the diameter of test drum, in millimeter |
| --- | --- | --- |
| R2 | is the diameter of the reference test drum of 1 700 mm |
| rT | is the tyre outer diameter (see paragraph 6.2 of this Regulation), in millimeter |
| F1 | is the percentage of load to be applied for the test drum |
| F2 | is the percentage of load, as per above table, to be applied for reference test drum of 1 700 mm |
| Example: | K = 1 for a test drum diameter of 1 700 mm; |

3.4.1.

F1 = K × F2

where
  Formula

R1

is the diameter of test drum, in millimeter

R2

is the diameter of the reference test drum of 1 700 mm

rT

is the tyre outer diameter (see paragraph 6.2 of this Regulation), in millimeter

F1

is the percentage of load to be applied for the test drum

F2

is the percentage of load, as per above table, to be applied for reference test drum of 1 700 mm

Example:

K = 1 for a test drum diameter of 1 700 mm;

In case of a test drum diameter of 3 000 mm and a tyre diameter of 1 500 mm:

Formula

| 3.5. | The tyre pressure must not be corrected throughout the test and the test load must be kept constant throughout each of the three test steps. |
| --- | --- |

3.5.

| 3.6. | During the test the temperature in the test room must be maintained at between 20 °C and 30 °C or at another temperature if the manufacturer so agrees. |
| --- | --- |

3.6.

| 3.7. | The load/speed test programme must be carried out without interruption. |
| --- | --- |

3.7.

4.   TEST PROCEDURE ON A TRAILER

| 4.1. | Mount two new tyres of the same type on a trailer |
| --- | --- |

4.1.

| 4.2. | Apply on the trailer a mass in order that each tyre be equally loaded with a test load corresponding to the load carrying capacity allowed for that tyre type at 15 km/h (see load variations in annex 7). |
| --- | --- |

4.2.

| 4.3. | Run the trailer at a constant speed of 15 km/h ± 1 km/h for 48 hours. |
| --- | --- |

4.3.

| 4.3.1. | Temporary interruptions are allowed, but they must be compensated by an additional run-in of 5 min for every 20 minutes of interruption. |
| --- | --- |

4.3.1.

| 4.4. | The tyre pressure must not be corrected and the test load must be kept constant throughout the test. |
| --- | --- |

4.4.

| 4.5. | During the test the ambient temperature shall be between 5 °C and 30 °C or at another temperature if the manufacturer so agrees. |
| --- | --- |

4.5.

5.   EQUIVALENT TEST METHODS

If a method other than those described above is used, its equivalence must be demonstrated.

---

ANNEX 10

TYRE CLASSIFICATION CODE

(Optional marking)

| Classification code | Nomenclature |
| --- | --- |
| F-1 | Agricultural tractor steering wheel tyres: single rib tread |
| F-2 | Agricultural tractor steering wheel tyres: multiple rib tread |
| F-3 | Steering wheel tyres: industrial service (construction application) |
| | |
| G-1 | Garden tractor tyres (implement tyres): traction service |
| G-2 | Garden tractor tyres (implement tyres): flotation traction service |
| G-3 | Garden tractor tyres (implement tyres): maximum flotation service |
| | |
| I-1 | Agricultural implement tyres: multi-rib tread |
| I-2 | Agricultural implement tyres: moderate traction service |
| I-3 | Agricultural implement tyres: traction tread |
| I-4 | Agricultural implement tyres: plough tail wheel service |
| I-5 | Agricultural implement tyres: steering service |
| I-6 | Agricultural implement tyres: Smooth tread |
| | |
| LS-1 | Logging and Forestry Service Tyres: regular tread |
| LS-2 | Logging and Forestry service tyres: intermediate tread |
| LS-3 | Logging and Forestry service tyres: deep tread |
| LS-4 | Logging and Forestry Service Tyres: shallow tread |
| | |
| R-1 | Agricultural tractor drive wheel tyres: regular tread |
| R-2 | Agricultural tractor drive wheel tyres: cane and rice service (deep tread) |
| R-3 | Agricultural tractor drive wheel tyres: flotation service (shallow tread) |
| R-4 | Drive wheel tyres: industrial service (construction application) |

Classification code

Nomenclature

F-1

Agricultural tractor steering wheel tyres: single rib tread

F-2

Agricultural tractor steering wheel tyres: multiple rib tread

F-3

Steering wheel tyres: industrial service (construction application)

G-1

Garden tractor tyres (implement tyres): traction service

G-2

Garden tractor tyres (implement tyres): flotation traction service

G-3

Garden tractor tyres (implement tyres): maximum flotation service

I-1

Agricultural implement tyres: multi-rib tread

I-2

Agricultural implement tyres: moderate traction service

I-3

Agricultural implement tyres: traction tread

I-4

Agricultural implement tyres: plough tail wheel service

I-5

Agricultural implement tyres: steering service

I-6

Agricultural implement tyres: Smooth tread

LS-1

Logging and Forestry Service Tyres: regular tread

LS-2

Logging and Forestry service tyres: intermediate tread

LS-3

Logging and Forestry service tyres: deep tread

LS-4

Logging and Forestry Service Tyres: shallow tread

R-1

Agricultural tractor drive wheel tyres: regular tread

R-2

Agricultural tractor drive wheel tyres: cane and rice service (deep tread)

R-3

Agricultural tractor drive wheel tyres: flotation service (shallow tread)

R-4

Drive wheel tyres: industrial service (construction application)

---

ANNEX 11

Example of the pictogram to be marked on both tyre sidewalls of the tyres to explicit the maximum inflation pressure not to be exceeded for bead seating during tyre mounting

Image 14

The pictogram must be placed on both sidewalls.

The value of inflation pressure (2,5 bar in the example) must be the same as specified in paragraph 4.1.14 of this Regulation.

Minimum heights of markings

| (mm) |
| --- |
| | Tyres of rim diameter code < 20 (508 mm) or of nominal section width ≤ 235 mm | Tyres of rim diameter code ≥ 20 (508 mm) or of nominal section width > 235 mm |
| a | 2 | 4 |

(mm)

Tyres of rim diameter code < 20 (508 mm) or of nominal section width ≤ 235 mm

Tyres of rim diameter code ≥ 20 (508 mm) or of nominal section width > 235 mm

a

2

4

The pictogram must be placed on both sidewalls.

The value of inflation pressure (250 kPa in the example) must be the same as specified by the tyre manufacturer in paragraph 4.1.14 of this Regulation.

---