Proposal for a Council Decision on the accession of the European Community to United Nations Economic Commission for Europe Regulation No 106 concerning the approval of pneumatic tyres for agricultural vehicles and their trailers
Date: 2000-03-28
Institutions: European Commission
Subjects: approval, environmental protection, motor vehicle, pneumatic tyre, technical regulations

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Proposal for a Council Decision on the accession of the European Community to United Nations
Economic Commission for Europe Regulation No 106 concerning the approval of pneumatic tyres
for agricultural vehicles and their trailers

(2000/C 274 E/06)

(Text with EEA relevance)

COM(2000) 160 final (cid:151) 2000/0051(AVC)

(Presented by the Commission on 28 March 2000)

THE COUNCIL OF THE EUROPEAN UNION,

Having regard to the Treaty establishing the European
Community,

Having regard to Council Decision 97/836/EC of 27 November
1997 with a view to accession by the European Community to
the Agreement of the United Nations Economic Commission
for Europe concerning the adoption of uniform technical
equipment and parts
prescriptions
which can be fitted to and/or be used on wheeled vehicles
and the conditions for reciprocal recognition of approvals
granted on the basis of
these prescriptions (Revised 1958
Agreement) (1), and in particular Article 3(3) and the second
indent of Article 4(2) thereof,

for wheeled vehicles,

Having regard to the proposal from the Commission,

barriers to trade in motor vehicles between the contracting
parties in respect of tyres and ensure a high level of safety
and environmental protection.

(2) Regulation No 106 has been notified to the Contracting
Parties and has entered into force in respect of all the
Contracting Parties who did not serve notice of
their
disagreement by the date or dates specified therein as a
Regulation annexed to the Revised Agreement of 1958.

(3) Regulation No 106 should be incorporated into the
Community approval system for agricultural and forestry
tractors and should thus be added to the legislation in force
within the Community,

Having regard to the assent of the European Parliament

HAS DECIDED AS FOLLOWS.

Whereas:

(1) The standard requirements of United Nations Economic
Commission for Europe Regulation No 106 concerning
the approval of pneumatic tyres for agricultural vehicles
technical
and their

intended to remove

trailers

are

Sole Article

The European Community accedes to United Nations Economic
Commission for Europe Regulation No 106 concerning the
approval of pneumatic tyres
for agricultural vehicles and
their trailers (2).

(1) OJ L 346, 17.12.1997, p. 78.

(2) See document E/ECE/324-E/ECE/TRANS/505/Rev.2/Add.105.

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ANNEX

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 (1)

(Revision 2, including the amendments entered into force on 16 October 1995)

Addendum 105: Regulation No 106

Date of entry into force: 7 May 1998

UNIFORM PROVISIONS CONCERNING THE APPROVAL OF PNEUMATIC TYRES FOR AGRICULTURAL
VEHICLES AND THEIR TRAILERS

UNITED NATIONS

(1) Former title of the Agreement:

Agreement Concerning the Adoption of Uniform Conditions of Approval and Reciprocal Recognition of Approval for Motor Vehicle
Equipment and Parts, done at Geneva on 20 March 1958.

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Regulation No 10

UNIFORM PROVISIONS CONCERNING THE APPROVAL OF PNEUMATIC TYRES FOR AGRICULTURAL
VEHICLES AND THEIR TRAILERS

CONTENTS

REGULATION

1. Scope

2. Definitions

3. Markings

4. Application for approval

5. Approval

6. Requirements

7. Modification of tyre type and extension of approval

8. Conformity of production

9. Penalties for non-conformity of production

10. Production definitely discontinued

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

administrative departments

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 2: Arrangement of approval mark

Annex 3: Arrangement of tyre markings

Annex 4:

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

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

Annex 6: Test method for measuring tyre dimensions

Annex 7: Variation of load capacity with speed

Annex 8: Test procedure to assess tyre resistance to bursting

Annex 9:

Load/speed test procedure

Annex 10: Tyre classification code

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

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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 (cid:145)D(cid:146)) and below.

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

(a) Construction application (tyres marked (cid:145)Industrial(cid:146) or (cid:145)IND(cid:146) or (cid:145)R4(cid:146) or (cid:145)F3(cid:146));

(b) Earth-moving equipment;

(c) Industrial and lift trucks.

2.

DEFINITIONS

For the purposes of this Regulation:

2.1.

2.1.1.

2.1.2.

2.1.3.

2.1.4.

2.1.5.

2.1.6.

2.1.7.

2.2.

2.3.

2.3.1.

2.3.2.

2.3.3.

2.4.

2.5.

2.6.

2.7.

2.8.

2.9.

2.10.

(cid:145)Type of agricultural tyre(cid:146) means a category of tyres which do not differ in such essential respects as:

the manufacturer;

tyre-size designation;

category of use:

(cid:151) Tractor (cid:151) Steering wheel:

(cid:151) Tractor (cid:151) Drive wheel (cid:151) standard tread

(cid:151) Tractor (cid:151) Drive wheel (cid:151) special tread

(cid:151) Implement (cid:151) traction:

(cid:151) Implement (cid:151) trailer;

(cid:151) Implement (cid:151) mixed applications

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

speed category symbol;

load capacity index;

tyre cross-section;

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

(cid:145)Structure(cid:146) of a tyre means the technical characteristics of the tyre carcass. The following structures are distinguished in particular:

(cid:145)Diagonal(cid:146) or (cid:145)bias-ply(cid:146) describes a tyre structure in which the ply cords extend to the bead and are laid at alternate angles of
substantially less than 90(cid:176) to the centreline of the tread;

(cid:145)Bias-belted(cid:146) 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;

(cid:145)Radial(cid:146) describes a tyre structure in which the ply cords extend to the beads and are laid substantially at 90(cid:176) to the centreline of the
tread, the carcass being stabilised by an essentially inextensible circumferential belt;

(cid:145)Bead(cid:146) means the part of a tyre which is of such shape and structure as to fit the rim and hold the tyre on it;

(cid:145)Cord(cid:146) means the strands forming the fabric of the plies in the tyre;

(cid:145)Ply(cid:146) means a layer of rubber-coated parallel cords;

(cid:145)Carcass(cid:146) means that part of a tyre other than the tread and the rubber sidewalls which, when inflated, bears the load;

(cid:145)Tread(cid:146) means that part of a tyre which comes into contact with the ground;

(cid:145)Sidewall(cid:146) means the part of the tyre, excluding the tread, which is visible when the tyre, fitted to a rim, is viewed from the side;

(cid:145)Section width (S)(cid:146) 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;

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2.11.

2.12.

2.13.

2.14.

2.15.

2.15.1.

2.15.2.

2.15.3.

(cid:145)Overall width(cid:146) means the linear distance between the outside of the sidewalls of an inflated tyre,
decoration and protective bands or ribs;

including labelling (marking),

(cid:145)Section height (h)(cid:146) means a distance equal to half the difference between the outer diameter of the tyre and the nominal rim diameter;

(cid:145)Nominal aspect ratio (Ra)(cid:146) 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;

(cid:145)Outer diameter (D)(cid:146) means the overall diameter of an inflated new tyre;

(cid:145)Tyre-size designation(cid:146) means a designation showing:

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

the nominal aspect ratio (Ra);

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

2.15.3.1.

on diagonal (bias-ply) tyres, the symbol (cid:145)-(cid:146) or the letter (cid:145)D(cid:146);

2.15.3.2.

on radial-ply tyres, the letter (cid:145)R(cid:146);

2.15.3.3.

on bias-belted tyres, the letter (cid:145)B(cid:146);

2.15.4.

2.15.5.

2.15.6.

2.15.7.

2.16.

the conventional number (cid:145)d(cid:146) denoting the nominal rim diameter;

optionally, the letters (cid:145)IMP(cid:146) after the nominal rim diameter marking in case of Implement tyres;

optionally, the letters (cid:145)FRONT(cid:146) or (cid:145)SL(cid:146) after the nominal rim diameter marking in case of Tractor steering wheel tyres;

However for tyres listed in annex 5 the (cid:145)tyre size designation(cid:146) is that shown in the first column of those tables.

(cid:145)Nominal rim diameter (d)(cid:146) 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 (cid:151) see table for equivalence
with millimeters) or in mm (numbers above 100) but not both:

(cid:145)d(cid:146)
symbol expressed
by codes

value to be used for
the calculation in
paras. 4.2.1 and 4.4
(mm)

(cid:145)d(cid:146)
symbol expressed
by codes

value to be used for
the calculation in
paras. 4.2.1 and 4.4
(mm)

(cid:145)d(cid:146)
symbol expressed
by codes

value to be used for
the calculation in
paras. 4.2.1 and 4.4
(mm)

4

5

6

7

8

9

10

11

12

13

14

15

15,3

16

16,1

17

102

127

152

178

203

229

254

279

305

330

356

381

389

406

409

432

18

19

20

21

22

24

26

28

30

32

34

36

38

40

42

44

457

483

508

533

559

610

660

711

762

813

864

914

965

1 016

1 067

1 118

46

48

50

52

54

14,5

15,5

16,5

17,5

19,5

20,5

22,5

24,5

26,5

30,5

1 168

1 219

1 270

1 321

1 372

368

394

419

445

495

521

572

622

673

775

2.17.

2.18.

2.19.

2.20.

(cid:145)Rim(cid:146) means the support for a tyre-and-tube assembly, or for a tubeless tyre, on which the tyre beads are seated;

(cid:145)Theoretical rim(cid:146) means the notional rim whose width would be equal to X times the nominal section width of a tyre; the value (cid:145)X(cid:146) must
be specified by the tyre manufacturer or the reference rim width is that mentioned in annex 5 for the relevant (cid:145)tyre size designation(cid:146);

(cid:145)Measuring rim(cid:146) means the rim on which a tyre is fitted for the measurement of the dimensions;

(cid:145)Tractor-drive wheel tyre(cid:146) means a tyre designed to be fitted to driven axles of agricultural and forestry tractors (vehicles in categories T)
suitable for sustained high torque service. The tread pattern of the tyre consists of lugs or cleats.

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2.21.

2.22.

2.23.

(cid:145)Tractor steering wheel tyre(cid:146) 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.

(cid:145)Implement tyre(cid:146) 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.

(cid:145)Traction tyre(cid:146) 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:

2.24.

(cid:145)Trailer tyre(cid:146) 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:

2.25.

(cid:145)Mixed applications tyre(cid:146) means a tyre designed to be fitted to either driven and non driven axles of implements, agricultural machinery
or trailers;

2.26.

(cid:145)Service description(cid:146) 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.

2.28.

(cid:145)Supplementary service description(cid:146) 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).

(cid:145)Load-capacity index(cid:146) 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 manu-
facturer. The list of these indices and their corresponding masses is given in annex 4;

2.29.

(cid:145)Speed category(cid:146), the reference speed expressed by the speed category symbol as shown in the table below:

Speed category
symbol

Reference speed
(km/h)

A2

A4

A6

A8

B

D

10

20

30

40

50

65

2.30.

(cid:145)Table: Variation of load capacity with speed(cid:146) 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 (cid:145)Variation of load capacity with speed(cid:146) is not applicable to the (cid:145)supplementary service description(cid:146).

2.31.

(cid:145)Maximum load rating(cid:146) 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
(cid:145)Load-capacity variation with speed(cid:146) (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.

2.33.

2.34.

2.35.

2.36.

2.37.

(cid:145)Tread groove(cid:146) means the space between the adjacent ribs or blocks in the tread pattern;

(cid:145)Tread lug (or cleat)(cid:146) means the solid-block element protruding from the base of the tread pattern;

(cid:145)Special tread(cid:146) 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;

(cid:145)Chunking(cid:146) means the breaking away of small pieces of rubber from the tread;

(cid:145)Cord separation(cid:146) means the parting of the cords from their rubber coating;

(cid:145)Ply separation(cid:146) means the parting of adjacent plies;

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2.38.

2.39.

2.40.

3.

3.1.

3.1.1.

3.1.2.

3.1.3.

(cid:145)Tread separation(cid:146) means the pulling away of the tread from the carcass;

(cid:145)Test rim(cid:146) means the rim on which a tyre must be fitted for the performance test.

(cid:145)Tyre classification code(cid:146) 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.

MARKINGS

Tyres must bear:

the manufacturer’s trade name or mark;

the tyre-size designation as defined in paragraph 2.15;

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 (cid:145)RADIAL(cid:146);

3.1.3.3.

on bias-belted tyres, the words (cid:145)BIAS-BELTED(cid:146);

3.1.4.

the (cid:145)service description(cid:146) 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 (cid:145)trailer(cid:146) applications
and the other for (cid:145)traction(cid:146) applications, each supplemented with the relevant symbol as follows:

(OFFSET)

3.1.5.

3.1.6.

3.1.7.

3.1.8.

3.1.9.

3.1.10.

3.1.11.

3.2.

3.3.

3.4.

3.4.1.

3.4.2.

3.4.3.

where the first service description (95 A6) refers to (cid:145)traction applications(cid:146) and the second (108 A6) to (cid:145)trailer applications(cid:146).

the supplementary service description, if applicable.

the inscription (cid:145)DEEP(cid:146) (or (cid:145)R-2(cid:146) or (cid:145)LS-3(cid:146)) in the case of a special tread tyre;

the inscriptions (cid:145)F-1(cid:146) or (cid:145)F-2(cid:146) or (cid:145)F-3(cid:146) in the case of a Tractor steering wheel tyre that is not already marked as per paragraph 2.15.6.
above;

the inscription (cid:145)IMPLEMENT(cid:146) in the case of an implement tyre that is not already marked as per paragraph 2.15.5 above;

the word (cid:145)TUBELESS(cid:146) if the tyre is designed for use without an inner tube;

on tractor drive wheel tyres and, if applicable, on implement traction tyres an arrow indicating the preferred direction of rotation of
the tyre;

the inscription (cid:145). . . bar MAX.(cid:146) inside the pictogram shown in annex 11, to notify the cold inflation pressure that shall not be exceeded
for bead seating during tyre mounting.

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).

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

Position of markings

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

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

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.

(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.

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4.

4.1.

4.1.1.

4.1.2.

4.1.3.

4.1.4.

4.1.5.

4.1.6.

4.1.7.

4.1.8.

4.1.9.

4.1.10.

4.1.11.

4.1.12.

4.1.13.

4.1.14.

APPLICATION FOR APPROVAL

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:

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

The trade name or mark.

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

The structure.

The speed category symbol.

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

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

The supplementary service description, if applicable.

The tyre/rim configuration.

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

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

The inflation pressure (bar) for measurements.

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

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).

4.2.

5.

5.1.

5.2.

5.3.

5.4.

5.4.1.

5.4.2.

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.

APPROVAL

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.

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.

Notice of approval or of refusal of approval of a type of pneumatic tyre pursuant to this Regulation shall be communicated to the
Parties to the Agreement which apply this Regulation by means of a form conforming to the model in annex 1 to this Regulation and
of a photograph or of drawings supplied by the applicant for approval, in a format not exceeding A4 (210 (cid:215) 297 mm) or folded to that
format and on an appropriate scale.

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:

A circle surrounding the letter (cid:145)E(cid:146) followed by the distinguishing number of the country which has granted approval (1).

An approval number.

(1) 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 Yugoslavia, 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 (vacant), 25 for Croatia, 26 for Slovenia, 27 for Slovakia, 28 for Belarus, 29 for Estonia, 30
(vacant), 31 for Bosnia and Herzegovina, 32-36 (vacant), 37 for Turkey, 38-39 (vacant) and 40 for The former Yugoslav Republic of Macedonia. Subsequent numbers
shall be assigned to other countries in the chronological order in which they ratify or accede to the Agreement concerning the Recognition of Approval for Motor
Vehicle Equipment and Parts, and the numbers thus assigned shall be communicated by the Secretary-General of the United Nations to the Contracting Parties to the
Agreement.

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5.5.

5.6.

6.

6.1.

The approval mark shall be clearly legible and be indelible.

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

REQUIREMENTS

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 (cid:136) S1 (cid:135) K (cid:133)A-A1(cid:134)

where:

S

S1

A

= is the (cid:145)section width(cid:146) expressed in mm related to the measuring rim;

= is the (cid:145)nominal section width(cid:146)

in mm as shown on the sidewall of the tyre in the tyre-size designation as prescribed;

= is the width (expressed in mm) (1) of the measuring rim, as shown by the manufacturer in the descriptive note,

A1

= is the width (expressed in mm) (1) 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.

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.

Outer diameter of a tyre

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

where:

D is the outer diameter expressed in mm,

D (cid:136) d (cid:135) 2 H

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 (cid:136) 0; 01 (cid:2) Ra (cid:2) S1

where:

Ra

is the nominal aspect ratio,

S1 is the (cid:145)nominal section width(cid:146) 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.

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.

Tyre section width: specification of tolerances

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

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 %

6.1.2.

6.2.

6.2.1.

6.2.2.

6.3.

6.3.1.

6.3.2.

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.

(1) Conversion factor from code to mm is 25.4.

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6.4.

6.4.1.

Tyre outer diameter: specification of tolerances

The outer diameter of a tyre must not be outside the values Dmin and Dmax obtained from the following formulae:

Dmin (cid:136) d (cid:135) 2 (cid:133)H (cid:2) a(cid:134)

Dmax (cid:136) d (cid:135) 2 (cid:133)H (cid:2) b(cid:134)

where (cid:145)H(cid:146) and (cid:145)d(cid:146) are as defined in paragraph 6.2.1.

6.4.1.1.

for sizes listed in annex 5: H (cid:136) 0; 5 (cid:133)D (cid:255) d(cid:134) (for references see paragraph 6.2 above).

6.4.2.

coefficients (cid:145)a(cid:146) and (cid:145)b(cid:146) are respectively:

Category of use

Steering wheels

Drive wheels (cid:151) normal

Drive wheels (cid:151) special

Implement

Test procedures

Radial

Diagonal (bias)

a

0,96

0,96

1,00

0,96

b

1,04

1,04

1,12

1,04

a

0,96

0,96

1,00

0,96

b

1,07

1,07

1,12

1,07

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

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

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.

6.5.1.

6.5.2.

6.5.2.1.

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.

6.5.3.2.

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.

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.

7.

7.1.

7.1.1.

7.1.2.

7.2.

7.3.

7.4.

MODIFICATION OF TYRE TYPE AND EXTENSION OF APPROVAL

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

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

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

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.

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.

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:

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.

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.

8.1.

8.2.

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9.

9.1.

9.2.

PENALTIES FOR NON CONFORMITY OF PRODUCTION

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.

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.

11.1.

11.2.

11.3.

NAMES AND ADDRESSES OF TECHNICAL SERVICES RESPONSIBLE FOR CONDUCTING APPROVAL TESTS, OF TEST LABORA-
TORIES, AND OF ADMINISTRATIVE DEPARTMENTS

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.

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.

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.

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C 274 E/45

Annex 1

COMMUNICATION

(maximum format: A4 (210 (cid:215) 297 mm))

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.

2.

3.

4.

5.

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

Tyre type designation by the manufacturer:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

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

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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.

7.

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

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Date of report issued by that service:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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8.

9.

10.

11.

12.

13.

14.

Number of report issued by that service:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Reason(s) of extension (if applicable):

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Any remarks:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Place:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Date:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Signature:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

(FIGURE (cid:151) OFFSET)

a (cid:136) 12 mm min

The above approval mark affixed to a pneumatic tyre shows that the type of tyre concerned has been approved in the Netherlands (E4) pursuant to
Regulation No 106 under approval number 002439. The first two digits of the approval number indicate that the approval was granted in accordance
with the requirements of Regulation No 106 in its original form.

Note: The approval number must be placed close to the circle and either above or below the (cid:145)E(cid:146) or to the left or right of that letter. The digits of the
approval number must be on the same side of the (cid:145)E(cid:146) and face in the same direction. The use of Roman numerals as approval numbers should
be avoided so as to prevent any confusion with other symbols.

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C 274 E/47

Annex 3

ARRANGEMENT OF TYRE MARKINGS

(see paragraphs 3.1 and 3.2)

PART A: DRIVE WHEEL TYRES FOR AGRICULTURAL AND FORESTRY TRACTORS

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

(OFFSET)

MINIMUM HEIGHTS OF MARKINGS (mm)

Tyres of rim diameter
code < 20 (508 mm)
or of nominal section
width £ 230 mm

Tyres of rim diameter
code ‡ 20 (508 mm)
or of nominal section
width > 230 mm

b

c

6

9

4

These markings define a Drive wheel tyre:

(cid:151) having a nominal section width of 360,

(cid:151) having a nominal aspect ratio of 70,

(cid:151) of radial ply structure (R),

(cid:151) having a nominal rim diameter of 610 for which the code is 24,

(cid:151) having a load capacity of 1 250 kg, corresponding to load index 116 in annex 4,

(cid:151) classified in the speed category A8 (reference speed 40 km/h),

(cid:151) 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,

(cid:151) for fitting without an inner tube ((cid:145)tubeless(cid:146)),

(cid:151) having a special tread ((cid:145)R-2(cid:146)),

(cid:151) manufactured during the twenty-fifth week of the year 1995 (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: 360/70 R 24;

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(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 (cid:145)TUBELESS(cid:146), (cid:145)R-2(cid:146) or (cid:145)DEEP(cid:146), the optional word (cid:145)RADIAL(cid:146) and the date of production may be at a distance from the size designation.

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

(OFFSET)

MINIMUM HEIGHTS OF MARKINGS (mm)

Tyres of rim diameter
code < 13 (330 mm)
or of nominal section
width £ 130 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

4

b

c

6

4

9

These markings define a steering wheel tyre:

(cid:151) having a nominal section width of 250,

(cid:151) having a nominal aspect ratio of 70,

(cid:151) of radial-ply structure (R),

(cid:151) 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),

(cid:151) having load capacities of 925 kg, corresponding to the load capacity index 105 shown in annex 4,

(cid:151) classified in the nominal speed category A6 (reference speed 30 km/h),

(cid:151) for fitting without an inner tube (cid:145)tubeless(cid:146), and

(cid:151) manufactured during the twenty-fifth week of the year 1995 (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 (cid:145)FRONT(cid:146), 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;

(c) the symbol (cid:145)TUBELESS(cid:146), the optional word (cid:145)RADIAL(cid:146), the optional symbol (cid:145)F-1(cid:146), and the date of manufacture may be at a distance from the size

designation.

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Official Journal of the European Communities

C 274 E/49

PART C: IMPLEMENT TYRES

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

(OFFSET)

MINIMUM HEIGHTS OF MARKINGS (mm)

Tyres of rim diameter
code < 13 (330 mm)
or of nominal section
width £ 130 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

b

c

d

4

7

9

6

4

12

These markings define an implement tyre:

(cid:151) having a nominal section width of 250,

(cid:151) having a nominal aspect ratio of 70,

(cid:151) of radial-ply structure (R),

(cid:151) having a nominal rim diameter of 508 mm, for which the code is 20,

(cid:151) designed primarily for the equipment of implements, agricultural machinery or agricultural trailers (IMP),

(cid:151) 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,

(cid:151) 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,

(cid:151) both applications being classified in the nominal speed category A6 (reference speed 30 km/h),

(cid:151) for fitting without an inner tube (cid:145)tubeless(cid:146), and

(cid:151) manufactured during the twenty-fifth week of the year 1995 (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;

(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 (cid:145)TUBELESS(cid:146), the optional word (cid:145)RADIAL(cid:146), the optional word (cid:145)IMPLEMENT(cid:146) and the date of manufacture may be at a distance from the

size designation;

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LIST OF LOAD CAPACITY INDICES (LI) AND CORRESPONDING MAXIMUM MASS TO BE CARRIED (kg)

(see paragraph 2.28)

Annex 4

LI

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
#47
48
49
50

kg

46,2
47,5
48,7
50
51,5
53
54,5
56
58
60
61,5
63
65
67
69
71
73
75
77,5
80
82,5
85
87,5
90
92,5
95
97,5

100
103
106
109
112
115
118
121
125
128
132
136
140
145
150
155
160
165
170
175
180
185
190

LI

51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100

kg

195
200
206
212
218
224
230
236
243
250
257
265
272
280
290
300
307
315
325
335
345
355
365
375
387
400
412
425
437
450
462
475
487
500
515
530
545
560
580
600
615
630
650
670
690
710
730
750
775
800

LI

101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150

kg

825
850
875
900
925
950
975
1 000
1 030
1 060
1 090
1 120
1 150
1 180
1 215
1 250
1 285
1 320
1 360
1 400
1 450
1 500
1 550
1 600
1 650
1 700
1 750
1 800
1 850
1 900
1 950
2 000
2 060
2 120
2 180
2 240
2 300
2 360
2 430
2 500
2 575
2 650
2 725
2 800
2 900
3 000
3 075
3 150
3 250
3 350

LI

151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200

kg

3 450
3 550
3 650
3 750
3 875
4 000
4 125
4 250
4 375
4 500
4 625
4 750
4 875
5 000
5 150
5 300
5 450
5 600
5 800
6 000
6 150
6 300
6 500
6 700
6 900
7 100
7 300
7 500
7 750
8 000
8 250
8 500
8 750
9 000
9 250
9 500
9 750
10 000
10 300
10 600
10 900
11 200
11 500
11 800
12 150
12 500
12 850
13 200
13 600
14 000

26.9.2000

EN

Official Journal of the European Communities

C 274 E/51

THEORETICAL RIM, OUTER DIAMETER AND NOMINAL SECTION WIDTH OF TYRES OF CERTAIN SIZE
DESIGNATIONS

Annex 5

Table 1 (cid:151) Agricultural Steering Wheels (cid:151) Normal and Low Section Sizes

Tyre size Designation

Theoretical rim width code (A1)

Nominal Width (S1)
(mm)

Overall diameter (D)
(mm)

Nominal rim Diameter (d)
(mm)

4.00-9
4.00-12
4.00-15
4.00-16
4.00-19
4.50-10
4.50-16
4.50-19
5.00-10
5.00-12
5.00-15
5.00-16
5.50-16
6.00-14
6.00-16
6.00-18
6.00-19
6.00-20
6.50-10
6.50-16
6.50-20
7.50-16
7.50-18
7.50-20
8.00-16
9.00-16
9.50-20
10.00-16
11.00-16
11.00-24

Low Section

7.5L-15
8.25/85-15
9.5L-15
9.5/85-15
11L-15
11.5/75-15
7.5L-16
11L-16
14L-16.1
14.0/80-16.1
14.5/75-16.1
16.5L-16.1

3
3
3
3
3
3
3
3
3
3
4
4
4
5
4,5
4
4,5
4,5
4,5
4,5
4,5
5,5
5,5
5,5
5,5
6
7
8
10
10

6
6
8
8
8
8
6
8
11
11
11
14

112
112
112
112
112
121
122
122
130
130
140
140
150
169
165
160
165
165
175
175
175
205
205
205
211
234
254
274
315
315

210
210
240
240
280
280
208
279
360
360
373
419

460
535
610
630
712
505
655
736
530
580
655
680
710
688
735
790
814
840
608
760
865
805
860
915
813
855
978
895
965
1 170

745
745
785
785
815
815
746
840
985
985
940
1 072

229
305
381
406
483
254
406
483
254
305
381
406
406
356
406
457
483
508
254
406
508
406
457
508
406
406
508
406
406
610

381
381
381
381
381
381
406
406
409
409
409
409

Notes: 1. Agricultural steering wheels tyres are identified either by suffix (cid:145)Front(cid:146) (or (cid:145)SL(cid:146)) 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: (cid:145)F-1(cid:146), (cid:145)F-2(cid:146) or (cid:145)F-3(cid:146).
2. Tyres of radial structure are identified by means of the letter (cid:145)R(cid:146) in place of (cid:145)-(cid:146) (e.g. 4.00R9)

C 274 E/52

EN

Official Journal of the European Communities

26.9.2000

Table 2 (cid:151) Drive wheel Tyres for agricultural tractors (cid:151) Normal Section Sizes

Tyre size Designation

Theoretical rim width
code (A1)

Nominal section Width (S1)
(mm)

Overall Diameter (D)
(mm)

Radial

Diagonal

Radial

Diagonal

Nominal rim Diameter
(d)
(mm)

4.00-7
4.00-8
4.00-9
4.00-10
4.00-12
4.00-18
4.50-10
5.0-10
5.00-10
5.00-12
5.00-15
6.00-12
6.00-16
6.5-15
6.50-16
7.50-18
8.00-20
5-12
5-14
5-26
6-10
6-12
6-14
7-14
7-16
8-16
8-18
7.2-20
7.2-24
7.2-30
7.2-36
7.2-40
8.3-16
8.3-20
8.3-22
8.3-24
8.3-26
8.3-28
8.3-32
8.3-36
8.3-38
8.3-42
8.3-44
9.5-16
9.5-18
9.5-20
9.5-22
9.5-24
9.5-26
9.5-28
9.5-32
9.5-36

3
3
3
3
3
3
3
4
3
4
4
4
4
5
5
5,5
6
4
4
4
5
5
5
5
6
6
7
6
6
6
6
6
7
7
7
7
7
7
7
7
7
7
7
8
8
8
8
8
8
8
8
8

112
112
112
112
112
112
121
135
130
145
145
160
160
167
175
205
220
127
127
127
157
157
157
173
183
201
211
183
183
183
183
183
211
211
211
211
211
211
211
211
211
211
211
241
241
241
241
241
241

241
241

410
435
460
485
535
690
505
505
530
580
645
635
735
685
760
860
965
545
595
900
550
600
650
690
740
790
840
845
945
1 095
1 250
1 350
790
890
940
995
1 045
1 095
1 195
1 300
1 350
1 450
1 500
845
895
945
995
1 050
1 100

1 250
1 355

178
203
229
254
305
457
254
254
254
305
381
305
406
381
406
457
508
305
356
660
254
305
356
356
406
406
457
508
610
762
914
1 016
406
508
559
610
660
711
813
914
965
1 067
1 118
406
457
508
559
610
660
711
813
914

985

1 190
1 290

1 440
1 495

940

1 040

1 140

1 345

211

211
211

211
211

241

241

241

241

26.9.2000

EN

Official Journal of the European Communities

C 274 E/53

Tyre size Designation

Theoretical rim width
code (A1)

Nominal section Width (S1)
(mm)

Overall Diameter (D)
(mm)

Radial

Diagonal

Radial

Diagonal

Nominal rim Diameter
(d)
(mm)

9.5-38
9.5-42
9.5-44
9.5-48
11.2-18
11.2-20
11.2-24
11.2-26
11.2-28
11.2-36
11.2-38
11.2-42
11.2-44
11.2-48
12.4-16
12.4-20
12.4-24
12.4-26
12.4-28
12.4-30
12.4-32
12.4-36
12.4-38
12.4-42
12.4-46
12.4-52
13.6-16
13.6-24
13.6-26
13.6-28
13.6-36
13.6-38
13.6-48
13.9-36
14.9/80-24
14.9-20
14.9-24
14.9-26
14.9-28
14.9-30
14.9-38
14.9-46
15.5-38
16.9-24
16.9-26
16.9-28
16.9-30
16.9-34
16.9-38
16.9-42
18.4-16.1
18.4-24
18.4-26
18.4-28

8
8
8
8
10
10
10
10
10
10
10
10
10
10
11
11
11
11
11
11
11
11
11
11
11
11
12
12
12
12
12
12
12
12
12
13
13
13
13
13
13
13
14
15
15
15
15
15
15
15
16
16
16
16

241
241
241
241
284
284
284
284
284
284
284

315

315
315
315
315
315
315
315
315

345
345
345
345
345
345

353
368
378
378
378
378
378
378

394
429
429
429
429
429
429

467
467
467
467

1 405
1 505
1 555
1 655
955
1 005
1 105
1 155
1 205
1 410
1 460

956

1 160
1 210
1 260
1 310
1 360
1 465
1 515
1 615

1 005
1 210
1 260
1 310
1 515
1 565

1 478
1 215
1 265
1 265
1 315
1 365
1 415
1 615

1 570
1 335
1 385
1 435
1 485
1 585
1 690

1 137
1 400
1 450
1 501

1 550
1 650

995
1 095

1 200
1 400
1 455
1 555
1 610
1 710

1 045
1 145

1 250

1 350
1 450
1 500

1 705
1 860

1 190
1 260
1 295
1 500
1 550
1 805

1 245
1 295
1 350
1 400
1 600
1 824
1 565
1 320
1 370
1 420
1 475
1 575
1 675
1 775

1 395
1 440
1 490

965
1 067
1 118
1 219
457
508
610
660
711
914
965
1 067
1 118
1 219
406
508
610
660
711
762
813
914
965
1 067
1 168
1 321
406
610
660
711
914
965
1 219
965
610
508
610
660
711
762
965
1 168
965
610
660
711
762
864
965
1 067
409
610
660
711

241
241

284
284

284
284
284
284
284
284

315
315

315

315
315
315

315
315

345
345
345
345
345
345

378
378
378
378
378
378
394
429
429
429
429
429
429
429

467
467
467

C 274 E/54

EN

Official Journal of the European Communities

26.9.2000

Tyre size Designation

Theoretical rim width
code (A1)

Nominal section Width (S1)
(mm)

Radial

Diagonal

18.4-30
18.4-34
18.4-38
18.4-42
18.4-46
20.8-34
20.8-38
20.8-42
23.1-26
23.1-30
23.1-34
24.5-32

Low Section Height

7.5L-15
17.5L-24
19.5L-24
21L-24
28.1-26
28L-26
30.5L-32

16
16
16
16
16
18
18
18
20
20
20
21

6
15
17
18
25
25
27

467
467
467
467
467
528
528
528
587
587
587
622

445
495

719
775

467
467
467
467

528
528
528
587
587
587
622

210
445
495
533
714
714
775

Overall Diameter (D)
(mm)

Radial

1 545
1 645
1 750
1 850
1 958
1 735
1 835
1 935
1 605
1 700
1 800
1 800

1 241
1 314

1 607
1 820

Diagonal

1 550
1 650
1 750
1 850

1 735
1 835
1 935
1 605
1 705
1 805
1 805

745
1 265
1 339
1 402
1 615
1 615
1 820

Nominal rim Diameter
(d)
(mm)

762
864
965
1 067
1 168
864
965
1 067
660
762
864
813

381
610
610
610
660
660
813

Notes: 1. The Tyre size designation may be suplemented by an additional figure: ex: 23.1/18-26 instead of 23.1-26.

2. Tyres of radial structure are identified by means of the letter (cid:145)R(cid:146) in place of (cid:145)-(cid:146) (e.g. 23.1R26).
3. Coefficient for the calculation of the overall width: + 8 %.

Table 3 (cid:151) Drive wheel Tyres for agricultural tractors (cid:151) 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
12.4/78-28
12.4/78-36
13.6/78-28
13.6/78-36
14.9/78-28
16.9/78-28
16.9/78-30
16.9/78-34
16.9/78-38
18.4/78-30
18.4/78-38

10
11
11
12
12
13
15
15
15
15
16
16

296
327
327
367
367
400
452
452
452
452
490
490

1 180
1 240
1 440
1 285
1 490
1 345
1 410
1 460
1 560
1 665
1 525
1 730

711
711
914
711
914
711
711
762
864
965
762
965

Table 4 (cid:151) Drive wheel Tyres for agricultural tractors (cid:151) 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)

260/70R16
260/70R18
260/70R20

8
8
8

258
258
258

806
858
908

406
457
508

26.9.2000

EN

Official Journal of the European Communities

C 274 E/55

Tyre size Designation

Theoretical rim width code (A1)

Nominal section Width (S1)
(mm)

Overall diameter (D)
(mm)

Nominal rim Diameter (d)
(mm)

300/70R20
320/70R20
320/70R24
320/70R28
360/70R20
360/70R24
360/70R28
380/70R20
380/70R24
380/70R28
420/70R24
420/70R28
420/70R30
480/70R24
480/70R26
480/70R28
480/70R30
480/70R34
480/70R38
520/70R26
520/70R30
520/70R34
520/70R38
580/70R38

9
10
10
10
11
11
11
12
12
12
13
13
13
15
15
15
15
15
15
16
16
16
16
18

295
319
319
319
357
357
357
380
380
380
418
418
418
479
479
479
479
479
479
516
516
516
516
577

952
982
1 094
1 189
1 042
1 152
1 251
1 082
1 190
1 293
1 248
1 349
1 398
1 316
1 372
1 421
1 478
1 580
1 681
1 456
1 536
1 640
1 749
1 827

508
508
610
711
508
610
711
508
610
711
610
711
762
610
660
711
762
864
965
660
762
864
965
965

Table 5 (cid:151) Agricultural Implement Tyres (cid:151) 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)

125-15 IMP
140-6 IMP
165-15 IMP
2.50-4 IMP
2.75-4 IMP
2.50-8 IMP
3.00-4 IMP
3.00-8 IMP
3.00-10 IMP
3.25-8 IMP
3.25-16 IMP
3.50-5 IMP
3.50-6 IMP
3.50-8 IMP
3.50-16 IMP
4.00-4 IMP
4.00-5 IMP
4.00-6 IMP
4.00-8 IMP
4.00-9 IMP
4.0-10 IMP
4.00-10 IMP
4.00-12 IMP
4.00-15 IMP
4.00-16 IMP

3,5
4,5
4,5
1,75
1,75
1,5
2,5
2,5
2,5
2,10
1,85
3
2,5
2,5
1,85
3
3
3
3
3
3
3
3
3
3

127
135
167
68
70
68
90
90
90
84
88
95
100
100
92
114
102
114
112
112
114
114
112
112
114

590
315
650
225
234
338
265
367
418
366
590
292
343
393
590
313
310
374
418
443
455
465
519
595
618

381
152
381
102
102
203
102
203
254
203
406
127
152
203
406
102
127
152
203
229
254
254
305
381
406

C 274 E/56

EN

Official Journal of the European Communities

26.9.2000

Tyre size Designation

Theoretical rim width code (A1)

Nominal section Width (S1)
(mm)

Overall diameter (D)
(mm)

Nominal rim Diameter (d)
(mm)

4.00-18 IMP
4.00-19 IMP
4.00-21 IMP
4.00/4.50-21 IMP
4.10-4 IMP
4.10-6 IMP
4.50-9 IMP
4.50-14 IMP
4.50-16 IMP
4.50-19 IMP
4.80-8 IMP
5.00-8 IMP
5.00-9 IMP
5.0-10 IMP
5.0-12 IMP
5.00-12 IMP
5.00-14 IMP
5.0-15 IMP
5.00-15 IMP
5.00-16 IMP
5.00/5.25-21 IMP
5.50-16 IMP
5.70-12 IMP
5.70-15 IMP
5.90-15 IMP
6-6 IMP
6.00-9 IMP
6-12 IMP
6.0-12 IMP
6.00-12 IMP
6.00-16 IMP
6.00-19 IMP
6.00-20 IMP
6.40-15 IMP
6.5-15 IMP
6.50-10 IMP
6.50-16 IMP
6.50-20 IMP
6.70-15 IMP
6.90-9 IMP
7.00-12 IMP
7.00-14 IMP
7.00-15 IMP
7.00-16 IMP
7.00-18 IMP
7.00-19 IMP
7.50-10 IMP
7.50-14 IMP
7.50-15 IMP
7.50-16 IMP
7.50-18 IMP
7.50-20 IMP
7.50-24 IMP
7.60-15 IMP
8-16 IMP

3
3
3
3
3,25
3,25
3
3
3
3
3,75
4
3,5
4
4
4
4
4
3
4
3
4
4,5
4,5
4
4
4,5
5
5
5
4
4,5
4,5
4,5
5
5
4,5
5
4,5
5,5
5
5
5,5
5,5
5,5
5,5
6
5,5
6
5,5
5,5
5,5
5,5
5,5
6

112
114
112
110
102
102
124
124
123
124
121
145
141
145
145
145
145
145
130
145
136
150
146
146
150
145
169
145
155
152
158
169
169
163
163
178
173
176
182
175
187
170
200
200
200
200
214
194
215
202
202
202
202
193
211

672
694
765
765
268
319
466
593
647
720
423
467
497
505
566
567
618
642
639
669
824
685
570
647
665
425
543
585
569
579
712
810
830
684
674
597
735
850
733
545
667
691
744
769
820
845
634
686
808
785
836
887
989
734
795

457
483
533
533
102
152
229
356
406
483
203
203
229
254
305
305
356
381
381
406
533
406
305
381
381
152
229
305
305
305
406
483
508
381
381
254
406
508
381
229
305
356
381
406
457
483
254
356
381
406
457
508
610
381
406

26.9.2000

EN

Official Journal of the European Communities

C 274 E/57

Tyre size Designation

Theoretical rim width code (A1)

Nominal section Width (S1)
(mm)

Overall diameter (D)
(mm)

Nominal rim Diameter (d)
(mm)

8.00-6 IMP
8.00-12 IMP
8.00-16 IMP
8.00-19 IMP
8.00-20 IMP
8.25-15 IMP
8.25-16 IMP
8.25-20 IMP
9.00-10 IMP
9.00-13 IMP
9.00-15 IMP
9.00-16 IMP
9.00-24 IMP
10.00-12 IMP
10.00-15 IMP
10.00-16 IMP
10.50-16 IMP
11.00-12 IMP
11.00-16 IMP
11.0-20 IMP
11.25-24 IMP
11.25-28 IMP
11.5-24 IMP
13.50-16.1 IMP
14.0-24 IMP
15.0-24 IMP
15.0-28 IMP
17.0-28 IMP
17.0-30 IMP
18.5-34 IMP
20-20 IMP

7
5
6
6
6
6,5
6
6
6
5,5
5,5
6
8
6,5
8
8
6,5
6,5
6,5
9
10
10
10
11
12
13
13
15
15
16
14

203
214
206
214
214
237
229
229
234
247
247
234
272
262
274
274
280
277
277
285
325
325
305
353
370
400
400
455
455
490
520

452
710
808
888
945
835
832
934
696
814
850
848
1 094
790
853
895
955
835
937
950
1 171
1 273
1 070
1 021
1 170
1 210
1 310
1 390
1 440
1 600
1 270

152
305
406
483
508
381
406
508
254
330
381
406
610
305
381
406
406
305
406
508
610
711
610
409
610
610
711
711
762
864
508

Table 6 (1 of 2) (cid:151) Agricultural Implement Tyres (cid:151) 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)

7.5 L-15 IMP
8.5 L-14 IMP
9.5 L-14 IMP
9.5 L-15 IMP
11 L-14 IMP
11 L-15 IMP
11 L-16 IMP
12.5 L-15 IMP
12.5 L-16 IMP
14 L-16.1 IMP
16.5 L-16.1 IMP
19 L-16.1 IMP
21.5 L-16.1 IMP

6
6
7
7
8
8
8
10
10
11
14
16
18

210
216
241
241
279
279
279
318
318
356
419
483
546

745
721
741
767
752
777
803
823
848
940
1 024
1 087
1 130

381
356
356
381
356
381
406
381
406
409
409
409
409

Notes: 1. The suffix (cid:145)IMP(cid:146) may be replaced by the wording (cid:145)IMPLEMENT(cid:146) on the Tyre sidewall.

2. Tyres of radial structure are identified by means of the letter (cid:145)R(cid:146) in place of (cid:145)-(cid:146) (e.g. 7.5 L-R15).

C 274 E/58

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Official Journal of the European Communities

26.9.2000

Table 6 (2 of 2) (cid:151) Agricultural Implement Tyres (cid:151) 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)

205/50-10 IMP
19.0/45-17 IMP
15.0/55-17 IMP
10.5/65-16 IMP
11.0/60-16 IMP
11.0/65-12 IMP
13.0/65-18 IMP
13.0/70-16 IMP
14.0/65-16 IMP
9.0/70-16 IMP
11.5/70-16 IMP
11.5/70-18 IMP
15.0/70-18 IMP
16.0/70-20 IMP
16.5/70-22.5 IMP
20.0/70-508 IMP
8.0/75-15 IMP
9.0/75-16 IMP
10.0/75-12 IMP
10.0-15.3 IMP
10.0/75-15.3 IMP
10.0/75-16 IMP
12.0/75-18 IMP
13.0/75-16 IMP
13.5/75-430.9 IMP
14.5/75-20 IMP
6.5/80-12 IMP
6.5/80-15 IMP
8.50-12 IMP
10.0/80-12 IMP
10-18 IMP
10.5/80-18 IMP
11.5-15.3 IMP
11.5/80-15.3 IMP
12.5/80-15.3 IMP
12.5/80-18 IMP
14.5/80-18 IMP
15.5/80-24 IMP
17.0/80-508 IMP
19.5/80-20 IMP
21.0/80-20 IMP
5.5/85-9 IMP
10.5/85-15.3 IMP
13.5/85-28 IMP
16.5/85-24 IMP
16.5/85-28 IMP

7
16
13
9
9
9
11
11
11
7
9
9
13
14
13
16
6,5
7
9
9
9
9
9
11
11
12
5
5
7
9
9
9
9
9
9
9
12
13
13
16
16
4
9
11
13
13

211
491
391
274
281
281
336
337
353
226
290
290
391
418
417
508
199
226
264
258
264
264
299
336
345
372
163
163
235
264
260
274
295
290
307
308
372
394
426
499
525
145
274
345
417
417

450
866
850
755
742
670
890
890
870
725
815
865
990
1 075
1 158
1 220
710
749
685
785
760
805
915
900
945
1 060
569
645
715
710
875
885
860
845
889
965
1 060
1 240
1 200
1 300
1 362
475
792
1 293
1 322
1 423

254
432
432
406
406
305
457
406
406
406
406
457
457
508
572
508
381
406
305
389
389
406
457
406
431
508
305
381
305
305
457
457
389
389
389
457
457
610
508
508
508
229
389
711
610
711

Notes: 1. The suffix (cid:145)IMP(cid:146) may be replaced by the wording (cid:145)IMPLEMENT(cid:146) on the Tyre sidewall.

2. Tyres of radial structure are identified by means of the letter (cid:145)R(cid:146) in place of (cid:145)-(cid:146) (e.g. 205/50R10).

26.9.2000

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Official Journal of the European Communities

C 274 E/59

Table 7 (cid:151) 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(cid:215)3.50-4
11(cid:215)4.00-4
11(cid:215)4.00-5
11(cid:215)7-4
12(cid:215)4.00-5
13(cid:215)5.00-6
13(cid:215)6.00-8
13(cid:215)6.50-6
14(cid:215)5.00-6
14(cid:215)6.00-6
15(cid:215)6.00-6
16(cid:215)4.50-9
16(cid:215)5.50-8
16(cid:215)6.50-8
16(cid:215)7.50-8
17(cid:215)8.00-8
17(cid:215)8.00-12
18(cid:215)6.50-8
18(cid:215)7.00-8
18(cid:215)8.50-8
18(cid:215)9.50-8
19(cid:215)7.50-8
19(cid:215)8.00-10
19(cid:215)10.00-8
20(cid:215)8.00-10
20(cid:215)10.00-8
20(cid:215)10.00-10
20.5(cid:215)8.00-10
21(cid:215)8.00-10
AT21(cid:215)7-10
21(cid:215)11.00-8
21(cid:215)11.00-10
22(cid:215)8.00-10
22(cid:215)8.50-12
AT22(cid:215)9-8
22(cid:215)10.00-8
22(cid:215)10.00-10
22(cid:215)11.00-8
22(cid:215)11.00-10
AT23(cid:215)7-10
AT23(cid:215)8-11
23(cid:215)8.50-12
23(cid:215)9.00-12
23(cid:215)10.50-12
AT24(cid:215)8-11
AT24(cid:215)9-11
AT24(cid:215)10-11
24(cid:215)8.50-12
24(cid:215)8.50-14
24(cid:215)11.00-10
24(cid:215)13.00-12
25(cid:215)7.50-15
AT25(cid:215)8-12

2,75
3,25
3
6
3
3,5
5
5
4
4,5
4,5
3
4,25
5,375
5,375
7
7
5
5,5
7
7
5,5
7
8,5
7
8
8,5
6
7
5,5
8,5
9
6
7
7
7
8,5
8,5
8,5
5,5
6,5
7
7,5
8,5
6,5
7
8
7
7
8,5
10,5
5,5
6,5

91
102
104
185
112
122
154
163
127
157
155
105
142
165
188
203
203
163
178
214
235
180
203
254
203
254
254
208
203
177
282
279
196
216
227
244
254
284
254
175
204
214
229
264
204
227
254
213
213
254
325
191
204

229
280
272
270
298
320
330
330
347
340
366
405
414
405
411
438
432
457
450
450
462
480
483
483
500
508
508
526
525
533
518
525
556
551
559
572
559
546
559
587
584
575
575
579
610
610
610
602
602
607
592
640
635

101
101
127
101
127
152
203
152
152
152
152
229
203
203
203
203
305
203
203
203
203
203
254
203
254
203
254
254
254
254
203
254
254
305
203
203
254
203
254
254
279
305
305
305
279
279
279
305
356
254
305
381
305

C 274 E/60

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26.9.2000

Tyre size Designation

Theoretical rim width code (A1)

Nominal section Width (S1)
(mm)

Overall diameter (D)
(mm)

Nominal rim Diameter (d)
(mm)

25(cid:215)8.50-14
25(cid:215)10.50-15
AT25(cid:215)11-9
AT25(cid:215)11-10
25(cid:215)12.00-9
25(cid:215)12.50-15
26(cid:215)10.00-12
26(cid:215)12.00-12
26(cid:215)14.00-12
27(cid:215)8.50-15
27(cid:215)9.50-15
27(cid:215)10.50-15
27(cid:215)10-15.3
28(cid:215)9.00-15
28(cid:215)13-15
29(cid:215)12.00-15
29(cid:215)12.50-15
29(cid:215)13.50-15
31(cid:215)11.50-15
31(cid:215)12.50-15
31(cid:215)13.50-15
31(cid:215)13.5-15
31(cid:215)15.50-15
31(cid:215)15.5-15
33(cid:215)12.50-15
33(cid:215)15.50-15
36(cid:215)13.50-15
38(cid:215)14.00-20
38(cid:215)18.00-20
38(cid:215)20.00-16.1
41(cid:215)14.00-20
42(cid:215)25.00-20
43(cid:215)13.50-22
44(cid:215)18.00-20
44(cid:215)41.00-20
48(cid:215)20.00-24
48(cid:215)25.00-20
48(cid:215)31.00-20
54(cid:215)31.00-26
66(cid:215)43.00-25
66(cid:215)43.00-26
66(cid:215)44.00-25
67(cid:215)34.00-25
67(cid:215)34.00-26
67(cid:215)34.00-30
68(cid:215)50.00-32
VA73(cid:215)44.00-32
DH73(cid:215)44.00-32

7
8
9
8,5

10
10
10
10
12
7
7
8,5
9
7
11,5
10
10
10
8
10
10
10
13
13
10
13
10
11
14
16
11
20,5
10
14
36
15
20,5
26
26
36
36
36
30
30
30
44
36
36

213
267
281
262
305
310
310
310
356
214
229
259
261
234
330
310
310
351
301
310
351
351
391
391
310
391
351
356
457
488
356
622
360
457
991
457
635
775
775
1 054
1 054
1 118
864
864
864
1 270
1 118
1 118

645
640
635
645
635
640
660
660
660
680
686
691
685
710
711
742
742
742
793
792
782
782
792
792
843
843
909
991
991
991
1 067
1 080
1 102
1 143
1 143
1 245
1 245
1 245
1 397
1 702
1 702
1 702
1 727
1 727
1 727
1 753
1 880
1 880

356
381
229
254
229
381
305
305
305
381
381
381
389
381
381
381
381
381
381
381
381
381
381
381
381
381
381
508
508
409
508
508
559
508
508
610
508
508
660
635
660
635
635
660
762
813
813
813

Notes: 1. These Tyres may be classified in categories of use (cid:145)Tractor Drive Wheels(cid:146) or (cid:145)Implement(cid:146).

2. Implement Tyres are identified either by suffix (cid:145)IMP(cid:146) placed after the Tyre size designation (e.g. 11(cid:215)4.00-4 IMP) or by the word (cid:145)IMPLEMENT(cid:146)

marked on the Tyre sidewalls.

3. Tyres of radial structure are identified by means of the letter (cid:145)R(cid:146) in place of (cid:145)-(cid:146) (e.g. 11(cid:215)4.00 R4).

26.9.2000

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C 274 E/61

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

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

2.

3.

4.

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

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

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.

5.

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

Annex 7

VARIATION OF LOAD CAPACITY WITH SPEED

(see paragraphs 2.30 and 2.31)

PART A: DRIVE WHEEL TYRES FOR AGRICULTURAL AND FORESTRY TRACTORS

Applicable to tyres classified with categories of use: (cid:145)Tractor drive wheel(cid:146)

(see paragraph 2.20)

Variation of load carrying capacity (%)

Speed
(km/h)

10

15

20

25

30

35

40

45

50

55

60

65

70

A2

[0]

(cid:150) 6

(cid:150) 11

(cid:150) 16

(cid:150) 20

(cid:150) 24

(cid:150) 27

(cid:151)

(cid:151)

(cid:151)

(cid:151)

(cid:151)

(cid:151)

A6 (+)

+ 40

+ 30

+ 20

+ 7

[0]

(cid:150) 10

(cid:150) 20

(cid:151)

(cid:151)

(cid:151)

(cid:151)

(cid:151)

(cid:151)

Speed category symbol

A8 (+)

+ 50

+ 34

+ 23

+ 11

+ 7

+ 3

[0]

(cid:150) 4

(cid:150) 9

(cid:151)

(cid:151)

(cid:151)

(cid:151)

D (+)

+ 50

+ 34

+ 23

+ 18,5

+ 15

+ 12

+ 9,5

+ 7

+ 5

+ 3

+ 1,5

[0]

(cid:150) 9

(1)

+ 58

+ 35

+ 27

+ 20

+ 14

+ 10

+ 6

+ 2

[0]

(cid:151)

(cid:151)

(cid:151)

(cid:151)

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 (cid:145)B(cid:146).

C 274 E/62

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26.9.2000

PART B: STEERING WHEEL TYRES FOR AGRICULTURAL AND FORESTRY TRACTORS

Applicable to tyres classified with category of use (cid:145)Tractor steering wheels(cid:146) and marked (cid:145)Front(cid:146) or (cid:145)SL(cid:146) or (cid:145)F-1(cid:146) or (cid:145)F-2(cid:146) or (cid:145)F-3(cid:146)

(see paragraph 2.21)

(see paragraphs 2.30 and 2.31)

Variation of load carrying capacity (%)

Speed category symbol

A6

+ 50

+ 43

+ 35

+ 15

[0]

(cid:150) 10

(cid:150) 20

(cid:151)

A8

+ 67

+ 50

+ 39

+ 28

+ 11

+ 4

[0]

(cid:150) 7

Speed
(km/h)

10

15

20

25

30

35

40

45

PART C: IMPLEMENT TYRES

Applicable to tyres classified with categories of use: (cid:145)Implement(cid:146) and marked (cid:145)IMP(cid:146) or (cid:145)IMPLEMENT(cid:146)

(see paragraph 2.22)

(see paragraphs 2.30 and 2.31)

Variation of load carrying capacity (%)

Speed category symbol

A4

+ 20

+ 12

[0]

(cid:150) 2

(cid:150) 5

(cid:151)

(cid:151)

(cid:151)

(cid:151)

A6

+ 29

+ 21

+ 14

+ 7

[0]

(cid:150) 5

(cid:150) 10

(cid:151)

(cid:151)

A8

+ 40

+ 33

+ 26

+ 19

+ 12

+ 5

[0]

(cid:150) 5

(cid:150) 10

(1)

+ 58

+ 35

+ 27

+ 20

+ 14

+ 10

+ 6

+ 2

[0]

Speed
(km/h)

10

15

20

25

30

35

40

45

50

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 (cid:145)B(cid:146).

26.9.2000

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C 274 E/63

Annex 8

TEST PROCEDURE

to assess tyre resistance to bursting

1.

1.1.

1.2.

1.3.

2.

2.1.

Preparing the tyre

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.

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.

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

Test procedure

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;

2.1.1.

in no case, however, the limit value shall be lower than 6 bar or higher than 10 bar.

2.2.

2.3.

2.4.

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

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

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.

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.

1.1.

1.2.

2.

2.1.

Scope and range of application

This test procedure is applicable for new tyres corresponding to the characteristics specified in paragraph 3.4 below.

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

Preparing the tyre

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

2.1.1.

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

2.2.

2.3.

2.4.

2.5.

Use a new inner tube when testing tyres with inner tubes (i.e. tyres not bearing the marking (cid:145)Tubeless(cid:146)).

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.

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

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

C 274 E/64

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26.9.2000

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

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

3.

3.1.

Test procedure on a test drum

Mount the tyre and wheel assembly on the test axle and press it against the outer face of a smooth power-driven test drum 1,70 m
– 1 % in diameter having a surface at least as wide as the tyre tread.

3.1.1.

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

3.2.

3.3.

Test drum speed: 62,5 revolutions per minute.

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.

3.4.

Load/speed test programme:

Tyre speed
category symbol

test step

percentage of the
test load

duration
(hours)

D

1

2

3

66 %

84 %

101 %

7

16

24

3.5.

3.6.

3.7.

4.

4.1.

4.2.

4.3.

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.

During the test the temperature in the test room must be maintained at between 20 (cid:176)C and 30 (cid:176)C or at another temperature if the
manufacturer so agrees.

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

Test procedure on a trailer

Mount two new tyres of the same type on a trailer

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).

Run the trailer at a constant speed of 15 km/h – 1 km/h for 48 hours.

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.

4.4.

4.5.

5.

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

During the test the ambient temperature shall be between 5 (cid:176)C and 30 (cid:176)C or at another temperature if the manufacturer so agrees.

Equivalent test methods

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

26.9.2000

EN

Official Journal of the European Communities

C 274 E/65

Annex 10

TYRE CLASSIFICATION CODE

(Optional marking)

Classification code

Nomenclature

F-1

F-2

F-3

G-1

G-2

G-3

I-1

I-2

I-3

I-4

I-5

I-6

LS-2

LS-3

R-1

R-2

R-3

R-4

Agricultural tractor steering wheel tyres: single rib tread

Agricultural tractor steering wheel tyres: multiple rib tread

Steering wheel tyres: industrial service (construction application)

Garden tractor tyres (implement tyres): traction service

Garden tractor tyres (implement tyres): flotation traction service

Garden tractor tyres (implement tyres): maximum flotation service

Agricultural implement tyres: multi-rib tread

Agricultural implement tyres: moderate traction service

Agricultural implement tyres: traction tread

Agricultural implement tyres: plough tail wheel service

Agricultural implement tyres: steering service

Agricultural implement tyres: Smooth tread

Logging and Forestry service tyres: intermediate tread

Logging and Forestry service tyres: deep tread

Agricultural tractor drive wheel tyres: regular tread

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

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

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

(FIGURE (cid:151) OFFSET)

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

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 by the tyre manufacturer in paragraph 4.1.14 of this Regulation.