Source: https://www.pacode.com/secure/data/067/chapter159/chap159toc.html
Timestamp: 2018-02-23 12:12:10
Document Index: 681437699

Matched Legal Cases: ['§ 4103', '§ 175', '§ 175', '§ 175', '§ 175', '§ 175', '§ 159', '§ 159', '§ 159', '§ 159', '§ 159', '§ 159', '§ 159', '§ 159', '§ 159', '§ 159', '§ 159', '§ 159', '§ 159', '§ 159', '§ 159', '§ 159', 'art 574', 'art 574', '§ 159', '§ 159', '§ 159', '§ 159', '§ 159', '§ 159', '§ 159', '§ 159', '§ 159']

CHAPTER 159. NEW PNEUMATIC TIRES
159.1. Scope.
159.2. Application.
159.3. Definitions.
159.4. Requirements.
159.5. Test procedures.
159.6. Nonconforming tires.
The provisions of this Chapter 159 issued under the Vehicle Code, 75 Pa.C.S. § § 4103 and 4525, unless otherwise noted.
The provisions of this Chapter 159 adopted September 30, 1977, effective October 1, 1977, 7 Pa.B. 2808, unless otherwise noted.
This chapter cited in 67 Pa. Code § 175.65 (relating to tires and wheels); 67 Pa. Code § 175.95 (relating to tires and wheels); 67 Pa. Code § 175.124 (relating to tires and wheels); 67 Pa. Code § 175.145 (relating to tires and wheels); and 67 Pa. Code § 175.174 (relating to tires and wheels).
§ 159.1. Scope.
This chapter specifies tire dimensions and laboratory test requirements for bead unseating resistance, strength, endurance, and high speed performance; defines tire load ratings; and specifies labeling requirements for passenger car tires.
§ 159.2. Application.
This chapter shall apply to new pneumatic tires for use on passenger cars manufactured after 1948. However, it shall not apply to any tire which has been altered so as to render impossible its use, or its repair for use, as motor vehicle equipment.
§ 159.3. Definitions.
BeadThat part of the tire made of steel wires, wrapped or reinforced by ply cords, that is shaped to fit the rim.
Bead separationA breakdown of bond between components in the bead area.
Bias ply tireA pneumatic tire in which the ply cords that extend to the beads are laid at alternate angles substantially less than 90° to the centerline of the tread.
CarcassThe tire structure, except tread and sidewall rubber.
ChunkingThe breaking away of pieces of the tread or sidewall.
CordThe strands forming the plies in the tire.
Cord separationCords parting away from adjacent rubber compounds.
CrackingAny parting within the tread, sidewall or innerliner of the tire extending to cord material.
GrooveThe space between two adjacent tread ribs.
InnerlinerThe layers forming the inside surface of a tubeless tire that contains the inflating medium within the tire.
Innerliner separationThe parting of the innerliner from cord material in the carcass.
Load ratingThe maximum load a tire is rated to carry for a given inflation pressure.
Maximum load ratingThe load rating at the maximum permissible inflation pressure for that tire.
Maximum permissible inflation pressureThe maximum cold inflation pressure to which a tire may be inflated.
Open spliceAny parting at any junction of tread, sidewall or innerliner that extends to cord material.
Overall widthThe linear distance between the exteriors of the sidewalls of an inflated tire, including elevations due to labeling, decorations or protective bands or ribs.
PlyA layer of rubber-coated parallel cords.
Ply separationA parting of rubber compound between adjacent plies.
Pneumatic tireA mechanical device made of rubber, chemicals, fabric and steel or other materials, which, when mounted on an automotive wheel, provides the traction and contains the gas or fluid that sustains the load.
Radial ply tireA pneumatic tire in which the ply cords which extend to the beads are laid at substantially 90° to the centerline of the tread.
RimA metal support for a tire or a tire and tube assembly upon which the tire beads are seated.
Section widthThe linear distance between the exteriors of the sidewalls of an inflated tire, excluding elevations due to labeling, decoration, or protective bands.
SidewallThat portion of a tire between the tread and the bead.
Sidewall separationThe parting of the rubber compound from the cord material in the sidewall.
Size factorThe sum of the section width and the outer diameter of a tire determined on the test rim.
Test rimWith reference to a tire to be tested, any rim that is listed as appropriate for use with that tire in accordance with § 159.4(d) (relating to requirements). For purposes of this chapter and section 571.110, each rim listing shall include dimensional specifications and a diagram of the rim.
TreadThat portion of a tire that comes into contact with the road.
Tread ribA tread section running circumferentially around a tire.
Tread separationPulling away of the tread from the tire carcass.
This section cited in 67 Pa. Code § 159.4 (relating to requirements).
§ 159.4. Requirements.
(a) Size and construction. Each tire shall be designed to fit each rim specified for its size designation in each reference cited in the definition of test rim in § 159.3 (relating to definitions).
(b) Performance requirements. Performance requirements shall be as follows:
(1) General. Each tire shall conform to each of the following:
(i) It shall meet the requirements specified in paragraph (2) for its tire size designation, type and maximum permissible inflation pressure.
(ii) Its maximum permissible inflation pressure shall be either 32, 36, 40, or 60 p.s.i., or 240, 280 or 300 KPa.
(iii) Its load rating shall be that specified in Table I of Appendix A of this chapter for its size designation, type and each appropriate inflation pressure.
(iv) If manufactured on or after August 1, 1968, it shall incorporate a tread wear indicator that will provide a visual indication that the tire has worn to a tread depth of 1/16 inch.
(v) It shall, before being subjected to either the endurance test procedure specified in § 159.5(d) (relating to test procedures) or the high speed performance procedure specified in § 159.5(e), exhibit no visual evidence of tread, sidewall, ply, cord, innerliner, or bead separation, chunking, broken cords, cracking or open splices.
(vi) It shall meet the requirements of paragraph (2)(v) and (2)(vi) when tested on a test wheel described in § 159.5(d)(2)(i) (relating to test procedures), either alone or simultaneously with up to five other tires.
(2) Test requirements. Test requirements shall be as follows:
(i) Test sample. For each test sample the following shall be used:
(A) One tire for physical dimensions, resistance to bead unseating, and strength, in sequence.
(B) Another tire for tire endurance.
(C) A third tire for high speed performance.
(ii) Physical dimensions. Each tire, when measured in accordance with § 159.5(a) shall conform with each of the following:
(A) Its actual section width and overall width shall not exceed by more than 7.0% the section width specified in Table I of Appendix A for its size designation and type.
(B) Its size factor shall be at least as large as that specified in Table I of Appendix A for its size designation and type.
(iii) Tubeless tire resistance to bead unseating. When tested in accordance with § 159.5(b), the applied force required to unseat the tire bead at the point of contact is less than:
(A) 1,500 pounds for tires with a designated section width of less than 6 inches.
(B) 2,000 pounds for tires with a designated section width of 6 inches or more but less than 8 inches.
(C) 2,500 pounds for tires with a designated section width of 8 inches or more, using the section width specified in Table I of Appendix A for the applicable tire size designation and type.
(iv) Tire strength. Each tire shall meet the requirements for minimum breaking energy specified in Table II of Appendix A when tested in accordance with § 159.5(c).
(v) Tire endurance. When the tire has been subjected to the laboratory endurance test specified in § 159.5(d) using a test rim that undergoes no permanent deformation and allows no loss of air through the portion that it comprises of the tire-rim pressure chamber:
(A) There shall be no visual evidence of tread, sidewall, ply, cord, innerliner, or bead separation, chunking, broken cords, cracking or open splices.
(B) The tire pressure at the end of the test shall be not less than the initial pressures specified in § 159.5(d)(1)(i).
(vi) High speed performance. When the tire has been subjected to the laboratory high speed performance test specified in § 159.5(e), using a test rim that undergoes no permanent deformation and allows no loss of air through the portion that it comprises of the tire rim pressure chamber, the tire shall meet the requirements set forth in subparagraph (v)(A) and (B).
(c) Labeling requirements. Labeling requirements shall be as follows:
(1) Except as provided in paragraphs (2) and (3), each tire shall have permanently molded into or onto both sidewalls, in letters and numerals not less than 0.078 inches high, the information shown in subparagraphs (i) through (vii). On at least one sidewall, the information shall be positioned in an area between the maximum section width and bead of the tire. However, in no case shall the information be positioned on the tire so that it is obstructed by the flange of any rim designed for use with that tire under the provisions of this chapter and Standard No. 571.110.
(i) One size designation, except that equivalent inch and metric size designations may be used.
(ii) Maximum permissible inflation pressure.
(iii) Maximum load rating.
(iv) The generic name of each cord material used in the plies, both sidewall and tread area, of the tire.
(v) Actual number of plies in the sidewall, and the actual number of plies in the tread area, if different.
(vi) The words tubeless or tube type as applicable.
(vii) The word radial if the tire is a radial ply tire.
(2) Each tire shall be labeled with the symbol DOT in the manner specified in 49 CFR Part 574, which shall constitute a certification that the tire conforms to applicable Federal motor vehicle safety standards.
(3) Each tire shall be labeled with the name of the manufacturer, or brand name and number assigned to manufacturer in the manner specified in 49 CFR Part 574.
(4) Each tire manufactured between March 1, 1971, and May 22, 1971, shall either:
(i) Comply with section 4.3(d)(2) and 4.3(i), as effective until May 22, 1971.
(ii) Be labeled with the tire identification number required by 49 CFR 574.5 and comply with paragraphs (2) and (3) as effective on and after May 22, 1971.
(d) Tire and rim matching information. Matching information requirements shall be as follows:
(1) Each manufacturer of tires shall ensure that a listing of the rims that may be used with each tire that he produces is provided to the public. A listing compiled in accordance with subparagraph (i) need not include dimensional specifications or diagram of a rim if the dimensional specifications and diagram of the rim are contained in each listing published in accordance with subparagraph (ii). The listing shall be in one of the following forms:
(i) Listed by manufacturer name or brand name in a document furnished to dealers of the manufacturers tires, to any person upon request, and in duplicate to: Tire Division, National Highway Traffic Safety Administration, 400 Seventh Street S.W., Washington D.C. 20590.
(ii) Contained in publications current at the date of manufacture of the tire or any later date of at least one of the following organizations:
(A) The Tire and Rim Association.
(B) The European Tyre and Rim Technical Organisation.
(C) Japanese Industrial Standards.
(D) Deutsche Industrie Norm.
(E) The Society of Motor Manufacturers and Traders, Ltd.
(F) British Standards Institution.
(G) Scandinavian Tire and Rim Organisation.
(2) Information contained in any publication specified in paragraph (1)(ii) of this subsection which lists general categories of tires and rims by size designation, type of construction or intended use, shall be considered to be information of the manufacturer under paragraph (1) for the listed tires and rims, unless the publication itself or specific information provided according to paragraph (1)(i) indicates otherwise.
The provisions of this § 159.4 amended January 26, 1979, effective January 27, 1979, 9 Pa.B. 346.
This section cited in 67 Pa. Code § 159.3 (relating to definitions); and 67 Pa. Code § 159.5 (relating to test procedures).
§ 159.5. Test procedures.
(a) Physical dimensions. Tire physical dimensions shall be determined under uniform ambient conditions as follows:
(1) Mount the tire on a test rim having the test rim width specified in Appendix A of this chapter for that tire size designation and inflate it to the applicable pressure specified in Table III of Appendix A.
(2) Condition it at ambient room temperature for at least 24 hours.
(3) Readjust pressure to that specified in paragraph (1).
(4) Caliper the section width and overall width at six points approximately equally spaced around the tire circumference.
(5) Record the average of these measurements as the section width and overall width, respectively.
(6) Determine tire outer diameter by measuring the maximum circumference of the tire and dividing this dimension by pi (3.14).
(b) Tubeless tire bead unseating resistance. Bead unseating resistance shall be tested as follows:
(1) Preparation of tire-wheel assembly. The tire-wheel assembly shall be prepared as follows:
(i) Wash the tire, dry it at the beads, and mount it without lubrication or adhesives on a clean, painted test rim.
(ii) Inflate it to the applicable pressure specified in Table III of Appendix A of this chapter at ambient room temperature.
(iii) Mount the wheel and tire in the fixture shown in Figure 1 of this section, and force the standard block shown in Figure 2 of this section, against the tire sidewall as required by the geometry of the fixture.
Bead Unsealing Fixture Dimensions in InchesDiagram of Bead Unsealing Block Dimensions in Inches
(2) Test procedure. The test procedure shall be as follows:
(i) Apply a load through the block to the tire outer sidewall at the distance specified in Figure 1 of this section for the applicable wheel size at a rate of two inches per minute, with the load arm substantially parallel to the tire and rim assembly at the time of engagement.
(ii) Increase the load until the bead unseats or the applicable value specified in § 159.4(b)(2)(iii) (relating to requirements) is reached.
(iii) Repeat the test at least four places equally spaced around the tire circumference.
(c) Tire strength. Tire strength shall be tested as follows:
(1) Preparation of tire. The tire shall be prepared as follows:
(i) mount the tire on a test rim and inflate it to the applicable pressure specified in Table III of Appendix A of this chapter;
(ii) condition it at room temperature for at least three hours; and
(iii) readjust its pressure to that specified in subparagraph (i).
(i) Force a 3/4-inch diameter cylindrical steel plunger with a hemispherical end perpendicularly into the tread rib as near to the centerline as possible, avoiding penetration into the tread groove, at the rate of two inches per minute.
(ii) Record the force and penetration at five test points equally spaced around the circumference of the tire. If the tire fails to break before the plunger is stopped by reaching the rim, record the force and penetration as the rim is reached and use these values in subparagraph (iii).
(iii) Compute the breaking energy for each test point by means of the following formula: F x P
W =Energy, inch-pounds;
F =Force, pounds; and
P =Penetration, inches.
(iv) Determine the breaking energy value for the tire by computing the average of the five values obtained in accordance with subparagraph (iii) of this paragraph.
(d) Tire endurance. Endurance shall be tested as follows:
(i) Mount a new tire on a test rim and inflate it to the applicable pressure specified in Table III of Appendix A.
(ii) Condition the tire assembly to 100°F plus or minus 5°F for at least three hours.
(iii) Readjust tire pressure to that specified in subparagraph (i) immediately before testing.
(i) Mount the tire and wheel assembly on a test axle and press it against a flat-faced steel test wheel 67.23 inches in diameter and at least as wide as the section width of the tire to be tested or an approved equivalent test wheel, with the applicable test load specified in Table I of Appendix A for the size designation, type, and maximum permissible inflation pressure of the tire.
(ii) During the test, the air surrounding the test area shall be 100°F plus or minus 5°F.
(iii) Conduct the test at 50 miles per hour in accordance with the following schedule without pressure adjustment or other interruptions:
Loads for 
Loads from table I (listed in
specified psi or KPa column) 24 hours
32 psi 24 28 32
36 psi  28 32 36
40 psi  32 36 40
240 KPa  180 220 240
280 KPa 220 260 280
300 KPa  180 220 240
Load as specified percentage of maximum load rating marked on tire sidewall
60 psi  85 92 100
(iv) Immediately after running the tire the required time, measure its inflation pressure. Allow the tire to cool for one hour. Then deflate the tire, remove it from the test rim, and inspect it for the conditions specified in § 159.4(b)(2)(v)(A) (relating to requirements).
(e) High speed performance. High speed performance shall be tested as follows:
(1) After preparing the tire in accordance with subsection (d)(1), mount the tire and wheel assembly in accordance with subsection (d)(2)(i) and press it against the test wheel with the load specified in Table I of Appendix A for the size designation of the tire and the applicable pressure specified in Column B of the following table:
inflation pressure B
Load from Table I
32 psi  24
36 psi  28
40 psi  32
240 KPa 180 KPa column.
280 KPa 220 KPa column.
300 KPa 180 KPa column.
60 psi 85
(2) Break in the tire by running it for two hours at 50 miles per hour.
(3) Allow to cool to 100°F plus or minus 5°F and readjust the inflation pressure to the applicable pressure specified in Table III of Appendix A of this chapter.
(4) Without readjusting inflation pressure, test at 75 miles per hour for 30 minutes, 80 miles per hour for 30 minutes, and 85 miles per hour for 30 minutes.
(5) Immediately after running the tire the required time, measure its inflation pressure. Allow the tire to cool for one hour. Then deflate the tire, remove it from the test rim, and inspect it for the conditions specified in § 159.4(b)(2)(v)(A).
The provisions of this § 159.5 amended January 26, 1979, effective January 27, 1979, 9 Pa.B. 346.
§ 159.6. Nonconforming tires.
No tire of a type and size designation specified in Table I of Appendix A that is designed for use on passenger cars and manufactured on or after October 1, 1972, but does not conform to all the requirements of this standard, shall be sold, offered for sale, introduced or delivered for introduction in interstate commerce, or imported into the United States, for any purpose.
The following tables list tire sizes and tire constructions with proper load and inflation values. The tables group tires of related constructions and load-inflation values. Persons requesting the addition of new tire sizes to the tables or the addition of tables for new tire constructions may, when the additions requested are compatible with existent groupings, or when adequate justification for new tables exists, submit five copies of information and data supporting the request to the Secretary of Transportation, Attention: Motor Vehicle Programs, National Highway Traffic Safety Administration, U.S. Department of Transportation, Washington, D.C. 20590.
The information should contain the following:
(1) The tire size designation, and a statement either that the tire is an addition to a category of tires listed in the tables or that it is in a new category for which a table has not been developed.
(2) The tire dimensions, including aspect ratio, size factor, section width, overall width and test rim size.
(3) The load-inflation schedule of the tire.
(4) A statement as to whether the tire size designation and load-inflation schedule has been coordinated with the Tire and Rim Association, the European Tyre and Rim Technical Organisation, the society of Manufacturers and Traders Limited, the Japan Automobile Tire Manufacturers Association, the Deutsche Industrie Norm and the Scandinavian Tire and Rim Organisation.
(5) Copies of test data sheets showing test conditions, results and conclusions obtained for individual tests specified in this chapter.
(6) Justification for the additional tire sizes.
FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 109
TIRE LOAD RATINGS, TEST RIMS, MINIMUM SIZE FACTORS, AND SECTION WIDTHS FOR CONVENTIONAL AND LOW SECTION HEIGHT BIAS PLY TIRES
Maximum tire loads (pounds) at various cold inflation pressures (p.s.i.)
Test rim width Minimum size Section width 2
Tire size designation 1 16 18 20 22 24 26 28 30 32 34 36 38 40 (inches) factor (inches) (inches)
6.00-13  770 820 860 900 930 970 1,010 1,040 1,080 1,110 1,140 4 29.37 6.00
6.50-13  890 930 980 1,030 1,070 1,110 1,150 1,190 1,230 1,270 1,300 4½ 30.75 6.60
7.00-13  980 1,030 1,080 1,130 1,180 1,230 1,270 1,310 1,360 1,400 1,440 5 31.88 7.10
6.00-14  840 900 930 980 1,020 1,060 1,100 1,130 1,170 1,210 1,240 4 30.64 6.10
6.45-14  860 910 960 1,000 1,010 1,080 1,120 1,160 1,200 1,240 1,260 4½ 30.92 6.60
6.50-14  930 990 1,030 1,080 1,130 1,170 1,210 1,250 1,300 1,330 1,370 4 31.75 6.60
6.95-14  950 1,000 1,050 1,100 1,140 1,190 1,230 1,270 1,310 1,350 1,390 5 31.96 7.00
7.00-14  1,030 1,100 1,140 1,190 1,240 1,200 1,310 1,380 1,430 1,470 1,520 5 32.88 7.10
7.25-14  1,040 1,100 1,160 1,210 1,260 1,310 1,360 1,400 1,450 1,490 1,540 5 32.92 7.30
7.50-14  1,150 1,230 1,280 1,340 1,390 1,450 1,500 1,550 1,600 1,650 1,700 5½ 34.19 7.65
7.75-14  1,150 1,210 1,270 1,330 1,390 1,440 1,500 1,550 1,600 1,650 1,690 5½ 34.09 7.75
8.00-14  1,240 1,320 1,380 1,440 1,500 1,560 1,620 1,670 1,730 1,780 1,830 6 35.17 8.10
8.25-14  1,250 1,310 1,380 1,440 1,500 1,560 1,620 1,670 1,730 1,780 1,830 6 35.11 8.20
8.50-14  1,330 1,420 1,480 1,550 1,610 1,670 1,740 1,790 1,850 1,910 1,960 6 35.91 8.35
8.55-14  1,360 1,430 1,510 1,580 1,640 1,710 1,770 1,830 1,890 1,950 2,000 6 36.06 8.50
8.85-14  1,430 1,510 1,580 1,660 1,730 1,790 1,860 1,920 1,990 2,050 2,100 6½ 36.82 8.95
9.00-14  1,430 1,510 1,580 1,660 1,730 1,790 1,860 1,920 1,990 2,050 2,100 6½ 36.91 8.80
9.50-14  1,540 1,640 1,700 1,780 1,850 1,930 2,000 2,060 2,130 2,200 2,260 6½ 37.74 9.05
6.00-15  890 940 980 1,030 1,070 1,110 1,150 1,190 1,230 1,270 1,300 4 31.64 6.10
6.50-15  980 1,040 1,080 1,130 1,180 1,230 1,270 1,320 1,360 1,400 1,440 4½ 32.75 6.60
6.70-15  1,110 1,190 1,230 1,290 1,340 1,400 1,450 1,500 1,550 1,590 1,640 4½ 33.95 7.00
6.85-15  950 1,000 1,050 1,100 1,140 1,190 1,230 1,270 1,320 1,360 1,390 5 32.48 6.90
7.00-15 1,170 1,240 1,310 1,380 1,450 1,515 1,580 1,640 1,700 1,760 1,820 1,870 1,930 5 36.02 7.35
7.10-15  1,190 1,270 1,320 1,380 1,440 1,500 1,550 1,600 1,660 1,710 1,760 5 34.89 7.40
7.35-15  1,070 1,130 1,180 1,240 1,290 1,340 1,390 1,440 1,480 1,530 1,570 5½ 33.86 7.50
7.60-15  1,310 1,400 1,450 1,520 1,580 1,640 1,710 1,760 1,820 1,800 1,930 5½ 36.05 7.90
7.75-15  1,150 1,210 1,270 1,330 1,380 1,440 1,190 1,540 1,590 1,640 1,690 5½ 34.53 7.65
8.00-15  1,380 1,470 1,530 1,600 1,670 1,730 1,800 1,860 1,920 1,980 2,040 6 36.84 8.30
8.15-15  1,240 1,300 1,370 1,430 1,490 1,550 1,610 1,660 1,720 1,770 1,820 6 35.50 8.15
8.20-15  1,470 1,570 1,630 1,710 1,780 1,860 1,920 1,980 2,050 2,110 2,170 6 37.50 8.50
8.25-15 1,030 1,190 1,250 1,310 1,380 1,440 1,500 1,560 1,620 1,670 1,730 1,780 1,830 6 35.57 8.20
8.45-15  1,340 1,410 1,480 1,550 1,620 1,680 1,740 1,800 1,860 1,920 1,970 6 36.37 8.35
8.55-15 1,220 1,290 1,360 1,430 1,510 1,580 1,640 1,710 1,770 1,830 1,890 1,950 2,000 6 36.57 8.45
8.85-15  1,430 1,510 1,580 1,650 1,720 1,790 1,860 1,920 1,980 2,040 2,100 6½ 37.29 8.80
8.90-15  1,700 1,810 1,880 1,970 2,050 2,130 2,210 2,290 2,360 2,430 2,500 6½ 39.54 9.30
9.00-15  1,460 1,540 1,620 1,690 1,760 1,830 1,900 1,970 2,030 2,090 2,150 6 37.45 8.50
9.15-15  1,510 1,600 1,680 1,750 1,830 1,900 1,970 2,030 2,100 2,160 2,230 6½ 37.92 9.05
5.00-16 715 765 815 860 910 975 990 1,030 1,070 1,110 1,150 1,185 1,220 3 31.03 5.15
6.00-16  1,075 1,135 1,195 1,250 1,300 1,350 1,400 1,450 1,500  4 34.17 6.25
6.50-16 1,090 1,150 1,215 1,280 1,345 1,405 1,465 1,525 1,580 1,635 1,690 1,740 1,790 4½ 35.59 6.80
6.70-16  1,185 1,240 1,300 1,355 1,410 1,465 1,525 1,580 1,635 1,690 1,740 1,795 4½ 35.60 7.40
7.00-16  1,365 1,440 1,515 1,585 1,650 1,715 1,780 1,840 1,900  5 37.02 7.35
7.50-16  1,565 1,650 1,735 1,810 1,890 1,960 2,035 2,105 2,175  5½ 38.78 8.00
6.50-17  1,215 1,275 1,330 1,390 1,450 1,500 1,560 1,620 1,680 1,740 1,795 1,850 5 37.00 7.60
L84-15  1,510 1,600 1,680 1,750 1,830 1,900 1,970 2,030 2,100 2,160 2,230 6 37.88 8.65
1 The letters H, S or V may be included in any specified tire size designation adjacent to or in place of the "dash".
2 Actual section width and overall width shall not exceed the specified section width by more than 7 percent.
TIRE LOAD RATINGS, TEST RIMS, MINIMUM SIZE FACTORS, AND SECTION WIDTHS FOR 70 SERIES BIAS PLY TIRES
A70-13 720 770 810 860 900 940 980 1,020 1,060 1,090 1,130 1,160 1,200 5½ 30.27 7.30
B70-13 780 840 890 930 980 1,030 1,070 1,110 1,150 1,190 1,230 1,270 1,300 5 30.86 7.35
C70-13 840 890 950 1,000 1,050 1,100 1,140 1,190 1,230 1,270 1,320 1,360 1,400 5½ 31.68 7.80
D70-13 890 950 1,010 1,070 1,120 1,170 1,220 1,270 1,320 1,360 1,410 1,450 1,490 5½ 32.34 8.00
D70-14 890 950 1,010 1,070 1,120 1,170 1,220 1,270 1,320 1,360 1,410 1,450 1,490 5½ 32.81 7.85
E70-14 950 1,010 1,070 1,130 1,190 1,240 1,300 1,350 1,400 1,440 1,490 1,540 1,580 5½ 33.45 8.05
F70-14 1,020 1,090 1,160 1,220 1,280 1,340 1,400 1,450 1,500 1,550 1,610 1,650 1,700 5½ 34.16 8.30
G70-14 1,100 1,180 1,250 1,310 1,380 1,440 1,500 1,560 1,620 1,680 1,730 1,780 1,830 6 35.18 8.75
H70-14 1,200 1,290 1,360 1,440 1,510 1,580 1,650 1,710 1,770 1,830 1,890 1,950 2,010 6 36.19 9.10
J70-14 1,260 1,350 1,430 1,500 1,580 1,650 1,720 1,790 1,860 1,920 1,980 2,040 2,100 6½ 36.87 9.50
L70-14 1,340 1,430 1,520 1,600 1,680 1,750 1,830 1,900 1,970 2,040 2,100 2,170 2,230 6½ 37.62 9.75
A70-15 720 770 810 860 900 940 980 1,020 1,060 1,090 1,130 1,160 1,200 4½ 30.99 6.60
C70-15 840 890 950 1,000 1,050 1,100 1,140 1,190 1,230 1,270 1,320 1,360 1,390 5½ 32.75 7.50
D70-15 890 950 1,010 1,070 1,120 1,170 1,220 1,270 1,320 1,360 1,410 1,450 1,490 5½ 33.37 7.70
E70-15 950 1,010 1,070 1,130 1,190 1,240 1,300 1,350 1,400 1,440 1,490 1,540 1,580 6 34.13 8.10
F70-15 1,020 1,090 1,160 1,220 1,280 1,340 1,400 1,450 1,500 1,550 1,610 1,650 1,700 6 34.89 8.35
G70-15 1,100 1,180 1,250 1,310 1,380 1,440 1,500 1,560 1,620 1,680 1,730 1,780 1,830 6 35.66 8.60
H70-15 1,200 1,290 1,360 1,440 1,510 1,580 1,650 1,710 1,770 1,830 1,890 1,950 2,010 6 36.64 8.95
J70-15 1,260 1,350 1,430 1,500 1,580 1,650 1,720 1,790 1,860 1,920 1,980 2,040 2,100 6½ 37.36 9.35
K70-15 1,290 1,380 1,460 1,540 1,620 1,690 1,770 1,830 1,900 1,970 2,030 2,090 2,150 6½ 37.66 9.40
L70-15 1,340 1,430 1,520 1,600 1,680 1,750 1,830 1,900 1,970 2,040 2,100 2,170 2,230 6½ 38.09 9.60
1 The letters H, S or V may be included in any specified tire size designation adjacent to or in place of the dash.
TIRE LOAD RATINGS, TEST RIMS, MINIMUM SIZE FACTORS, AND SECTION WIDTHS FOR BIAS PLY TIRES
Maximum tire loads (pounds) at various cold inflation pressures (p.s.i.) Test rim
Tire size designation 1
16 18 20 22 24 26 28 30 32 34 36 38 40 (inches)
Super Balloon Sizes
4.80-10 320 355 390 430 470 490 510 535 555 575 595  3½ 23.90 5.00
5.20-10 350 395 440 485 530 555 575 605 625 650 670 695 715 3½ 24.84 5.20
5.20-10 385 430 475 515 550 580 605 630 650 675 700  4 24.00 5.80
5.20-12 395 445 495 545 595 625 655 685 710 735 760 785 810 3½ 26.79 5.20
5.60-12 460 520 575 620 670 715 760 795 825 855 885 915 940 4 27.83 5.71
5.90-12 460 505 550 595 640 665 700 730 735 785 810  4 26.00 5.90
6.20-12 505 555 605 655 705 735 775 805 835 865 895  4½ 27.00 6.30
5.20-13 430 485 540 590 640 670 710 740 765 795 820 850 875 3½ 27.72 5.20
5.60-13 495 560 620 675 725 770 810 850 880 910 945 975 1,005 4 28.92 5.71
5.90-13 555 625 695 755 815 860 895 935 970 1,005 1,040 1,075 1,105 4 29.74 5.91
6.20-13 520 580 640 700 750 780 820 850 880 910 945  4½ 28.00 6.30
6.40-13 630 705 785 845 915 945 985 1,025 1,060 1,100 1,140 1,175 1,210 4½ 31.26 6.42
6.70-13 690 775 860 935 1,000 1,045 1,090 1,135 1,175 1,220 1,260 1,305 1,340 4½ 32.14 6.69
6.90-13 695 745 795 845 915 955 1,005 1,045 1,085 1,120 1,160  5 30.00 7.20
5.20-14 475 535 595 645 695 735 785 825 855 885 915 945 975 3½ 28.89 5.20
5.60-14 530 595 660 715 770 815 855 890 920 955 990 1,020 1,050 4 29.94 5.71
5.90-14 585 660 730 785 850 880 925 970 1,005 1,040 1,080 1,115 1,145 4 30.76 5.91
6.40-14 660 745 825 890 960 1,000 1,050 1,090 1,130 1,170 1,210 1,250 1,290 4½ 32.19 6.42
6.45-14  860 910 960 1,000 1,040 1,080 1,120  4½ 30.92 6.60
5.20-15 505 570 630 685 740 780 830 870 900 935 965 1,000 1,030 3½ 29.75 5.20
5.60-15 555 625 695 755 815 860 895 935 970 1,005 1,040 1,075 1,105 4 30.87 5.71
5.90-15 615 695 770 825 890 935 980 1,015 1,070 1,090 1,130 1,165 1,200 4 31.77 5.91
6.40-15  875 950 1,010 1,055 1,100 1,150 1,190 1,230 1,260  4½ 33.20 6.42
Low Section Sizes
5.00-12 370 420 465 505 540 565 580 605 625 650 670 695 715 3½ 25.62 5.04
5.50-12 415 470 520 560 605 635 665 695 720 745 770 800 820 4 26.93 5.59
6.00-12 485 545 605 655 705 735 785 815 845 875 905 935 965 4½ 28.33 6.14
5.00-13 410 460 510 545 585 610 635 660 685 710 735 755 780 3½ 26.64 5.04
5.50-13 445 495 550 595 640 670 710 740 765 795 820 850 875 4 27.95 5.59
7.25-13 730 825 915 990 1,070 1,110 1,160 1,200 1,245 1,290 1,335 1,380 1,420 5 32.51 7.24
7.50-13 775 875 970 1,040 1,120 1,180 1,225 1,270 1,315 1,365 1,410 1,460 1,500 5½ 33.22 7.48
5.50-15L 505 570 630 675 725 760 800 840 870 900 935 965 995 4 29.97 5.59
6.00-15L 595 665 740 800 860 890 930 970 1,005 1,040 1,080 1,115 1,145 4½ 31.29 6.14
6.50-15L 675 755 840 900 970 1,010 1,060 1,105 1,145 1,185 1,230 1,270 1,305 4½ 32.66 6.54
7.00-15L 760 855 950 1,025 1,100 1,145 1,190 1,235 1,280 1,325 1,375 1,420 1,460 5 33.85 7.01
Super Low Section Sizes
145-10/5.95-10 380 430 475 515 550 580 605 630 650 675 700 725 745 4 24.76 5.79
125-12/5.35-12 335 380 420 450 485 510 535 550 570 590 610 630 650 3½ 24.68 5.00
135-12/5.65-12 370 420 465 505 540 570 590 620 640 665 690 710 730 4 25.53 5.39
145-12/5.95-12 440 495 550 595 640 665 700 730 755 785 810 840 865 4 26.69 5.79
155-12/6.15-12 485 545 605 655 705 735 775 805 835 865 895 925 950 4½ 27.36 6.18
135-13/5.65-13 415 470 520 555 595 625 655 685 710 735 760 785 810 4 26.53 5.39
145-13/5.95-13 470 525 585 620 670 705 745 770 800 825 855 885 910 4 27.61 5.79
155-13/6.15-13 515 575 610 700 750 780 820 850 880 910 945 975 1,005 4½ 28.44 6.18
165-13/6.45-13 575 645 715 770 825 865 905 935 970 1,005 1,040 1,075 1,105 4½ 29.52 6.57
175-13/6.95-13 635 715 795 845 915 955 1,005 1,045 1,085 1,120 1,160 1,200 1,235 5 30.34 7.01
185-13/7.35-13 695 785 870 945 1,010 1,060 1,115 1,160 1,205 1,245 1,290 1,335 1,370 5½ 31.41 7.40
135-14/5.65-14 440 495 550 595 640 665 700 730 755 785 810 840 865 4 27.54 5.59
145-14/5.95-14 495 560 620 665 715 750 785 815 845 875 905 935 965 4 28.54 5.79
155-14/6.15-14 540 610 675 730 780 825 860 895 925 960 995 1,030 1,060 4½ 29.45 6.18
125-15/5.35-15 395 445 495 535 570 600 625 650 675 700 720 745 770 3½ 27.69 5.00
135-15/5.65-15 460 520 575 610 660 690 720 750 775 805 835 860 885 4 28.53 5.39
145-15/5.95-15 520 585 650 710 760 790 830 860 890 925 955 985 1,015 4 29.54 5.79
155-15/6.35-15 585 660 730 780 835 875 915 950 985 1,020 1,055 1,090 1,125 4½ 30.45 6.18
175-15/7.15-15 705 795 880 955 1,020 1,070 1,125 1,170 1,215 1,255 1,300 1,345 1,385 5 32.42 7.01
165-14 650 715 770 815 880 925 970 1,000 1,035 1,080 1,115 1,145 1,170 4½ 31.22 6.57
175-14 715 780 850 915 980 1,025 1,070 1,115 1,160 1,200 1,235 1,270 1,310 5 32.13 7.01
185-14 805 870 940 1,000 1,080 1,135 1,190 1,235 1,290 1,325 1,370 1,400 1,435 5½ 33.15 7.40
195-14 860 950 1,025 1,105 1,180 1,235 1,290 1,345 1,400 1,445 1,490 1,535 1,580 5½ 34.18 7.80
205-14 940 1,025 1,115 1,190 1,270 1,335 1,400 1,455 1,510 1,565 1,610 1,655 1,700 6 34.84 8.19
215-14 1,015 1,115 1,200 1,290 1,380 1,445 1,520 1,590 1,640 1,700 1,740 1,785 1,830 6 35.75 8.58
225-14 1,080 1,180 1,280 1,380 1,465 1,540 1,620 1,700 1,750 1,810 1,850 1,915 1,970 6½ 36.69 8.98
165-15 685 750 805 860 915 970 1,015 1,060 1,105 1,135 1,180 1,200 1,235 4½ 31.73 6.57
185-15 815 905 970 1,050 1,115 1,180 1,235 1,280 1,325 1,370 1,410 1,445 1,490 5½ 33.59 7.40
195-15 880 970 1,050 1,135 1,215 1,280 1,335 1,390 1,445 1,490 1,535 1,580 1,620 5½ 34.61 7.80
205-15 970 1,060 1,145 1,225 1,300 1,370 1,445 1,500 1,565 1,610 1,665 1,720 1,765 6 35.79 8.19
215-15 1,050 1,145 1,235 1,335 1,435 1,500 1,590 1,640 1,700 1,740 1,800 1,850 1,910 6 37.24 8.58
235-15 1,150 1,295 1,435 1,545 1,660 1,735 1,825 1,895 1,965 2,035 2,110 2,180 2,245 6½ 38.26 9.37
5.0-15 460 520 575 610 660 690 720 750 775 805 835 860 885 4 28.53 5.39
5.5-15 520 585 650 710 760 790 830 860 890 925 955 985 1,015 4 29.54 5.79
TIRE LOAD RATINGS, TEST RIMS, MINIMUM SIZE FACTORS, AND SECTION WIDTHS FOR DASH(-) RADIAL PLY TIRES
145-10 495 525 545 565 585 605 625 640 655 670 685 700 710 4 24.76 5.79
125-12 405 430 445 465 480 495 505 525 535 550 560 575 580 3½ 24.68 5.00
135-12 480 510 530 550 565 585 600 620 635 650 665 675 685 4 25.53 5.39
145-12 570 605 625 650 675 695 715 740 760 775 790 805 815 4 26.69 5.79
155-12 630 670 695 720 745 770 795 820 840 860 875 890 905 4½ 27.36 6.18
135-13 515 545 565 590 610 630 650 670 690 705 715 730 740 4 26.53 5.39
145-13 605 640 665 695 720 740 765 790 815 830 845 855 870 4 27.61 5.79
155-13 670 710 735 765 790 815 840 870 895 910 925 940 955 4½ 28.44 6.18
165-13 700 750 800 850 890 930 970 1,010 1,050 1,090 1,130 1,170 1,200 4½ 29.52 6.57
175-13  810 860 920 980 1,040 1,100 1,150 1,200 1,240 1,300 1,350 4½ 30.30 6.75
185-13  870 940 1,010 1,080 1,140 1,210 1,270 1,330 1,390 1,450 1,510 5 31.42 7.25
195-13  970 1,040 1,110 1,180 1,250 1,320 1,400 1,450 1,520 1,580 1,640 5½ 32.38 7.70
135-14 555 585 610 635 655 675 695 720 740 750 765 780 790 4 27.54 5.39
145-14 645 680 710 735 760 785 810 840 865 885 905 920 935 4 28.54 5.79
155-14 630 680 720 760 800 840 880 920 950 980 1,010 1,040 1,070 4½ 29.45 6.18
165-14 740 790 840 890 940 980 1,020 1,060 1,100 1,140 1,180 1,220 1,250 4½ 30.53 6.57
175-14  830 900 960 1,030 1,100 1,160 1,230 1,280 1,350 1,400 1,470 5 31.63 7.00
185-14  920 1,000 1,070 1,140 1,220 1,290 1,360 1,420 1,500 1,560 1,640 5 32.59 7.30
195-14  1,020 1,100 1,180 1,270 1,340 1,420 1,500 1,570 1,650 1,720 1,800 5½ 33.69 7.80
205-14  1,100 1,180 1,270 1,380 1,350 1,540 1,620 1,700 1,770 1,860 1,940 6 34.82 8.80
215-14  1,200 1,300 1,390 1,510 1,580 1,670 1,770 1,850 1,920 2,010 2,100 6 35.79 8.60
225-14  1,320 1,420 1,510 1,610 1,710 1,800 1,900 1,970 2,050 2,150 2,230 6½ 36.44 8.95
125-15 495 525 545 565 585 605 625 640 655 670 685 700 710 3½ 27.69 5.00
135-15 585 620 645 670 695 715 735 755 775 795 810 825 840 4 28.53 5.39
145-15 680 720 750 780 805 830 855 875 895 920 940 960 975 4 29.54 5.79
155-15 740 785 815 850 880 905 930 955 980 1,005 1,025 1,045 1,060 4½ 30.45 6.18
165-15 770 820 870 920 970 1,020 1,070 1,110 1,150 1,190 1,230 1,270 1,310 4½ 31.45 6.57
175-15  990 1,050 1,100 1,150 1,200 1,250 1,300 1,350 1,400 1,440 1,480 5 32.41 7.00
180-15 925 980 1,020 1,060 1,095 1,130 1,170 1,190 1,230 1,260 1,280 1,305 1,325 4½ 32.04 6.62
185-15  1,000 1,070 1,140 1,210 1,280 1,350 1,420 1,480 1,540 1,600 1,660 5½ 33.58 7.45
195-15  1,080 1,160 1,240 1,330 1,400 1,470 1,550 1,620 1,680 1,760 1,820 5½ 34.22 7.65
205-15  1,190 1,280 1,370 1,450 1,530 1,620 1,700 1,760 1,840 1,920 2,000 6 35.20 8.10
215-15  1,280 1,380 1,480 1,570 1,660 1,760 1,860 1,940 2,020 2,100 2,200 6 36.00 8.35
220-15  1,320 1,420 1,520 1,610 1,695 1,785 1,875 1,960 2,050 2,135 2,225 6 36.49 8.35
225-15  1,370 1,470 1,580 1,670 1,780 1,880 1,980 2,060 2,150 2,240 2,340 6½ 36.94 8.80
230-15  1,405 1,515 1,625 1,725 1,825 1,925 2,020 2,110 2,190 2,280 2,360 6½ 37.30 8.80
235-15  1,430 1,540 1,640 1,750 1,850 1,960 2,060 2,160 2,250 2,350 2,450 6½ 37.75 9.05
240-15  1,455 1,570 1,680 1,790 1,890 1,990 2,090 2,190 2,280 2,380 2,480 6½ 38.28 9.05
185-16  1,140 1,210 1,270 1,330 1,390 1,450 1,500 1,550 1,600 1,650 1,700 5½ 34.14 7.40
165-400 800 860 920 980 1,030 1,080 1,130 1,180 1,220 1,260 1,300 1,340 1,380 4.65 32.04 6.62
TIRE LOAD RATINGS, TEST RIMS, MINIMUM SIZE FACTORS, AND SECTION WIDTHS FOR 77 SERIES BIAS PLY TIRES
G77-14  1,250 1,310 1,380 1,440 1,500 1,560 1,620 1,680 1,730 1,780 1,830 6 35.04 8.45
5.9-10 385 430 475 515 550 580 605 630 660 675 700  4 24.00 5.80
5.9-12 460 505 550 595 640 665 700 730 755 785 810  4 26.00 5.90
6.2-12 485 545 605 655 705 735 775 805 835 865 895 925 950 4 27.21 6.06
6.2-13 515 575 640 700 750 780 820 850 880 910 945 975 1,005 4 28.19 6.06
6.5-13 575 645 715 770 825 865 905 935 970 1,005 1,040 1,075 1,105 4½ 29.18 6.54
6.9-13 635 715 795 845 915 955 1,005 1,045 1,085 1,120 1,160  4½ 29.92 6.77
6.2-15 585 660 730 780 835 875 915 950 985 1,020 1,055 1,090 1,125 4 30.17 6.06
6.9-15 705 795 880 955 1,020 1,070 1,125 1,170 1,215 1,255 1,300 1,345 1,385 4½ 31.93 6.77
TABLE I-F
TIRE LOAD RATINGS, TEST RIMS, MINIMUM SIZE FACTORS, AND SECTION WIDTHS FOR TYPE R RADIAL PLY TIRES
5.20R10 435 460 485 510 535 560 585 615 635 660 685 710 735 3½ 24.84 5.20
5.00R12 480 495 515 535 555 575 595 615 635 650 670 690 710 3½ 25.62 5.04
5.20R12 515 540 565 590 615 640 665 695 715 740 765 790 815 3½ 26.79 5.20
5.50R12 520 545 570 595 620 650 670 705 725 750 775 800 825 4 26.93 5.59
5.60R12 600 630 655 685 715 740 770 800 825 850 875 905 930 4 27.83 5.71
5.00R13 535 555 575 590 615 630 650 670 690 705 725 745 765 3½ 26.64 5.04
5.20R13 570 595 620 645 670 695 720 750 770 795 820 845 870 3½ 27.72 5.20
5.50R13 575 600 625 650 675 695 725 750 775 795 825 850 875 4 27.95 5.59
5.60R13 655 685 710 740 765 795 825 855 880 905 935 960 990 4 28.92 5.71
6.00R13 675 705 735 760 790 815 845 875 900 925 950 975 1,005 4 29.37 6.00
5.90R13 705 780 805 830 860 885 915 940 965 990 1,015 1,045 1,070 4 29.74 5.91
6.40R13 810 840 870 905 940 970 1,005 1,040 1,070 1,100 1,135 1,165 1,200 4½ 31.26 6.42
6.50R13 800 830 860 890 925 960 995 1,030 1,060 1,090 1,120 1,150 1,180 4½ 30.75 6.60
6.70R13 690 775 860 935 1,000 1,045 1,090 1,135 1,175 1,220 1,260 1,305 1,340 4½ 32.14 6.69
7.00R13 870 910 950 985 1,025 1,060 1,100 1,145 1,175 1,215 1,255 1,295 1,335 5 31.88 7.10
7.25R13 940 980 1,020 1,060 1,100 1,135 1,175 1,215 1,255 1,290 1,330 1,370 1,410 5 32.51 7.24
5.20R14 605 640 670 700 730 760 795 830 855 885 915 950 980 3½ 28.89 5.20
5.90R14 750 785 815 845 875 905 935 970 995 1,025 1,055 1,085 1,115 4 30.76 5.91
7.00R14 925 960 1,000 1,040 1,075 1,115 1,155 1,195 1,235 1,270 1,320 1,350 1,380 5 32.88 7.10
7.50R14 1,065 1,100 1,140 1,180 1,220 1,260 1,300 1,340 1,380 1,415 1,460 1,500 1,540 5½ 34.19 7.65
5.60R15 705 780 805 830 860 885 915 940 965 990 1,015 1,045 1,070 4 30.87 5.71
6.40R15 885 925 965 1,005 1,040 1,080 1,120 1,160 1,200 1,235 1,275 1,310 1,350 4½ 33.26 6.42
6.70R15 975 1,015 1,055 1,095 1,130 1,170 1,215 1,255 1,290 1,325 1,365 1,405 1,445 4½ 33.95 7.00
7.60R15 1,160 1,200 1,245 1,285 1,325 1,370 1,415 1,465 1,500 1,535 1,575 1,610 1,655 5½ 36.00 7.90
1 The letters H, S or V may be included in any specified tire size designation adjacent to the R.
TABLE I-G
TIRE LOAD RATINGS, TEST RIMS, MINIMUM SIZE FACTORS, AND SECTION WIDTHS FOR 70 SERIES RADIAL PLY TIRES
AR70-13 720 770 810 860 900 940 980 1,020 1,060 1,090 1,130 1,160 1,200 5 30.04 7.15
BR70-13 780 840 890 930 980 1,030 1,070 1,110 1,150 1,190 1,230 1,270 1,300 5½ 31.04 7.60
CR70-13 840 890 950 1,000 1,050 1,100 1,140 1,190 1,230 1,270 1,320 1,360 1,400 5 31.65 7.85
DR70-13 890 950 1,010 1,070 1,120 1,170 1,220 1,270 1,320 1,360 1,410 1,450 1,490 5½ 32.29 8.05
CR70-14 840 890 950 1,000 1,050 1,100 1,140 1,190 1,230 1,270 1,320 1,360 1,400 5½ 32.23 7.65
DR70-14 890 950 1,010 1,070 1,120 1,170 1,220 1,270 1,320 1,360 1,410 1,450 1,490 5½ 32.78 7.90
ER70-14 950 1,010 1,070 1,130 1,190 1,240 1,300 1,350 1,400 1,440 1,490 1,540 1,580 5½ 33.42 8.10
FR70-14 1,020 1,090 1,160 1,220 1,280 1,340 1,400 1,450 1,500 1,550 1,610 1,650 1,700 6 34.34 8.55
GR70-14 1,100 1,180 1,250 1,310 1,380 1,440 1,500 1,560 1,620 1,680 1,730 1,780 1,830 6 35.12 8.85
HR70-14 1,200 1,290 1,360 1,440 1,510 1,580 1,650 1,710 1,770 1,830 1,890 1,950 2,010 6½ 36.31 9.40
JR70-14 1,260 1,350 1,430 1,500 1,580 1,650 1,720 1,790 1,860 1,920 1,980 2,040 2,100 6½ 36.86 9.55
LR70-14 1,340 1,430 1,520 1,600 1,680 1,750 1,830 1,900 1,970 2,040 2,100 2,170 2,230 6½ 37.59 9.80
DR70-15 890 950 1,010 1,070 1,120 1,170 1,220 1,270 1,320 1,360 1,410 1,450 1,490 5½ 33.34 7.75
ER70-15 950 1,010 1,070 1,130 1,190 1,240 1,300 1,350 1,400 1,440 1,490 1,540 1,580 5½ 33.91 7.95
FR70-15 1,020 1,090 1,160 1,220 1,280 1,340 1,400 1,450 1,500 1,550 1,610 1,650 1,700 6 34.87 8.40
GR70-15 1,100 1,180 1,250 1,310 1,380 1,440 1,500 1,560 1,620 1,680 1,730 1,780 1,830 6 35.65 8.65
HR70-15 1,200 1,290 1,360 1,440 1,510 1,580 1,650 1,710 1,770 1,830 1,890 1,950 2,010 6½ 36.83 9.20
JR70-15 1,260 1,350 1,430 1,500 1,580 1,660 1,720 1,790 1,860 1,920 1,980 2,040 2,100 6½ 37.31 9.40
KR70-15 1,290 1,380 1,460 1,540 1,620 1,690 1,770 1,830 1,900 1,970 2,030 2,090 2,150 6½ 37.62 9.50
LR70-15 1,340 1,430 1,520 1,600 1,680 1,760 1,830 1,900 1,970 2,040 2,100 2,170 2,230 6½ 38.06 9.65
MR70-15 1,420 1,520 1,610 1,700 1,780 1,860 1,940 2,020 2,090 2,160 2,230 2,300 2,370 7 38.93 10.15
1 The letters HR, SR or VR may be included in any specified tire size designation adjacent to or in place of the dash.
TABLE I-H
145R10 465 495 525 550 580 605 630 655 680 700 725 750 770 4 24.76 5.79
125R12 370 400 430 450 475 495 515 535 555 575 595 610 630 3½ 24.68 5.00
135R12 440 475 505 535 560 585 610 635 655 680 700 725 745 4 25.53 5.39
145R12 530 565 600 635 665 695 725 755 780 810 835 860 885 4 26.69 5.79
155R12 590 630 665 700 735 770 800 835 865 895 925 950 980 4½ 27.36 6.18
135R13 480 515 545 575 600 630 655 680 705 730 755 780 800 4 26.53 5.39
145R13 590 630 665 700 735 770 800 835 860 890 920 950 980 4 27.59 5.79
155R13 645 690 730 770 810 845 885 915 950 985 1,015 1,045 1,075 4½ 28.44 6.18
165R13 680 730 770 820 860 900 930 970 1,010 1,040 1,080 1,110 1,140 4½ 29.18 6.40
175R13 790 840 890 930 980 1,030 1,070 1,110 1,150 1,190 1,230 1,270 1,300 4½ 30.30 6.75
185R13 870 930 980 1,030 1,080 1,130 1,180 1,230 1,270 1,310 1,360 1,400 1,440 5 31.42 7.25
195R13 955 1,010 1,060 1,110 1,170 1,220 1,280 1,320 1,370 1,420 1,470 1,510 1,550 5½ 32.38 7.70
135R14 515 550 585 615 645 675 705 730 760 785 810 835 860 4 27.54 5.39
145R14 595 635 675 715 750 785 815 850 880 910 940 965 995 4 28.54 5.79
155R14 690 740 780 820 860 900 940 970 1,010 1,040 1,080 1,110 1,140 4 29.51 6.05
165R14 760 810 860 910 960 1,000 1,040 1,080 1,120 1,160 1,200 1,240 1,270 4½ 30.65 6.55
175R14 840 900 950 1,000 1,050 1,100 1,140 1,190 1,230 1,270 1,310 1,350 1,390 5 31.63 7.00
185R14 920 980 1,040 1,100 1,160 1,210 1,260 1,310 1,360 1,400 1,450 1,490 1,540 5 32.59 7.30
195R14 1,020 1,090 1,150 1,210 1,270 1,330 1,390 1,440 1,500 1,550 1,600 1,650 1,690 5½ 33.69 7.80
205R14 1,110 1,190 1,250 1,310 1,380 1,440 1,500 1,560 1,620 1,670 1,730 1,780 1,830 6 34.82 8.30
215R14 1,210 1,290 1,360 1,430 1,510 1,580 1,640 1,710 1,770 1,830 1,890 1,950 2,000 6 35.79 8.60
225R14 1,270 1,350 1,430 1,510 1,580 1,660 1,730 1,790 1,860 1,920 1,990 2,050 2,100 6½ 36.44 8.95
125R15 460 490 520 550 575 605 630 655 680 705 725 745 770 3½ 27.69 5.00
135R15 545 580 615 650 680 715 745 775 800 830 855 880 910 4 28.53 5.39
145R15 640 680 720 760 795 830 865 900 935 965 995 1,025 1,055 4 29.54 5.79
155R15 690 735 780 825 865 905 940 980 1,015 1,050 1,085 1,115 1,150 4½ 30.45 6.18
165R15 770 820 870 910 960 1,000 1,050 1,090 1,130 1,170 1,200 1,240 1,270 4½ 31.18 6.40
175R15 840 900 950 1,000 1,050 1,100 1,140 1,190 1,230 1,270 1,320 1,360 1,390 5 32.30 6.90
185R15 950 1,010 1,070 1,130 1,180 1,240 1,290 1,340 1,390 1,440 1,480 1,530 1,570 5½ 33.58 7.45
195R15 1,020 1,090 1,150 1,210 1,270 1,330 1,380 1,440 1,490 1,540 1,590 1,640 1,690 5½ 34.22 7.65
205R15 1,100 1,170 1,240 1,300 1,370 1,430 1,490 1,550 1,610 1,660 1,720 1,770 1,820 6 35.20 8.10
215R15 1,190 1,270 1,340 1,410 1,480 1,550 1,620 1,680 1,740 1,800 1,860 1,920 1,970 6 36.00 8.35
225R15 1,270 1,350 1,430 1,510 1,580 1,650 1,720 1,790 1,860 1,920 1,980 2,040 2,100 6½ 36.94 8.80
235R15 1,340 1,430 1,510 1,600 1,680 1,750 1,830 1,900 1,970 2,030 2,100 2,160 2,230 6½ 37.75 9.05
206R16 1,100 1,170 1,240 1,300 1,370 1,430 1,490 1,550 1,610 1,660 1,720 1,770 1,820 6 36.52 8.19
TABLE I-J
TIRE LOAD RATINGS, TEST RIMS, MINIMUM SIZE FACTORS, AND SECTION WIDTHS FOR 78 SERIES BIAS PLY TIRES
A78-13 720 770 810 860 900 940 980 1,020 1,060 1,090 1,130 1,160 1,200 4½ 29.74 6.60
B78-13 780 840 890 930 980 1,030 1,070 1,110 1,150 1,190 1,230 1,270 1,300 5 30.72 7.05
C78-13 840 890 950 1,000 1,050 1,100 1,140 1,190 1,230 1,270 1,320 1,360 1,400 5½ 31.56 7.45
D78-13 890 950 1,010 1,070 1,120 1,170 1,220 1,270 1,320 1,360 1,410 1,450 1,490 5½ 32.18 7.70
A78-14 720 770 810 860 900 940 980 1,020 1,060 1,090 1,130 1,160 1,200 4½ 30.31 6.45
B78-14 780 840 890 930 980 1,030 1,070 1,110 1,150 1,190 1,230 1,270 1,300 4½ 31.04 6.65
C78-14 840 890 950 1,000 1,050 1,100 1,140 1,190 1,230 1,270 1,320 1,360 1,400 5 31.95 7.05
D78-14 890 950 1,010 1,070 1,120 1,170 1,220 1,270 1,320 1,360 1,410 1,450 1,490 5 32.52 7.35
E78-14 950 1,010 1,070 1,130 1,190 1,240 1,300 1,350 1,400 1,440 1,490 1,540 1,580 5½ 33.29 7.65
F78-14 1,020 1,090 1,160 1,220 1,280 1,340 1,400 1,450 1,500 1,550 1,610 1,650 1,700 5½ 34.04 7.90
G78-14 1,100 1,180 1,250 1,310 1,380 1,440 1,500 1,560 1,620 1,680 1,730 1,780 1,830 6 35.02 8.35
H78-14 1,200 1,290 1,360 1,440 1,510 1,580 1,650 1,710 1,770 1,830 1,890 1,950 2,010 6 36.06 8.70
J78-14 1,260 1,350 1,430 1,500 1,580 1,650 1,720 1,790 1,860 1,920 1,980 2,040 2,100 6 36.58 8.80
A78-15 720 770 810 860 900 940 980 1,020 1,060 1,090 1,130 1,160 1,200 4½ 30.85 6.35
C78-15 840 890 950 1,000 1,050 1,100 1,140 1,190 1,230 1,270 1,320 1,360 1,400 5 32.45 6.95
D78-15 890 950 1,010 1,070 1,120 1,170 1,220 1,270 1,320 1,360 1,410 1,450 1,490 5 33.05 7.15
E78-15 950 1,010 1,070 1,130 1,190 1,240 1,300 1,350 1,400 1,440 1,490 1,540 1,580 5 33.65 7.35
F78-15 1,020 1,090 1,160 1,220 1,280 1,340 1,400 1,450 1,500 1,550 1,610 1,650 1,700 5½ 34.56 7.70
G78-15 1,100 1,180 1,250 1,310 1,380 1,440 1,500 1,560 1,620 1,680 1,730 1,780 1,830 5½ 35.36 8.05
H78-15 1,200 1,290 1,360 1,440 1,510 1,580 1,650 1,710 1,770 1,830 1,890 1,950 2,010 6 36.50 8.55
J78-15 1,260 1,350 1,430 1,500 1,580 1,650 1,720 1,790 1,860 1,920 1,980 2,040 2,100 6 37.02 8.70
L78-15 1,340 1,430 1,520 1,600 1,680 1,750 1,830 1,900 1,970 2,040 2,100 2,170 2,230 6 37.73 8.85
N78-15 1,500 1,600 1,700 1,790 1,880 1,970 2,050 2,130 2,210 2,280 2,360 2,430 2,500 7 39.50 9.80
TABLE I-K
TIRE LOAD RATINGS, TEST RIMS, MINIMUM SIZE FACTORS, AND SECTION WIDTHS FOR 60 SERIES BIAS PLY TIRES
A60-13 720 770 810 860 900 940 980 1,020 1,060 1,090 1,130 1,160 1,200 5½ 30.00 7.85
B60-13 780 840 890 930 980 1,030 1,070 1,110 1,150 1,190 1,230 1,270 1,300 6 30.95 8.35
C60-13 840 890 950 1,000 1,050 1,100 1,140 1,190 1,230 1,270 1,320 1,360 1,400 6 31.58 8.60
D60-13 890 950 1,010 1,070 1,120 1,170 1,220 1,270 1,320 1,360 1,410 1,450 1,490 6 32.20 8.85
B60-14 780 840 890 930 980 1,030 1,070 1,110 1,150 1,190 1,230 1,270 1,300 5½ 31.26 8.00
C60-14 840 890 950 1,000 1,050 1,100 1,140 1,190 1,230 1,270 1,320 1,360 1,400 6 32.09 8.45
D60-14 890 950 1,010 1,070 1,120 1,170 1,220 1,270 1,320 1,360 1,410 1,450 1,490 6 32.72 8.65
E60-14 950 1,010 1,070 1,130 1,190 1,240 1,300 1,350 1,400 1,440 1,490 1,540 1,580 7 33.69 9.30
F60-14 1,020 1,090 1,160 1,220 1,280 1,340 1,400 1,450 1,500 1,550 1,610 1,650 1,700 7 34.44 9.55
G60-14 1,100 1,180 1,250 1,310 1,380 1,440 1,500 1,560 1,620 1,680 1,730 1,780 1,830 7 35.23 9.85
H60-14 1,200 1,290 1,360 1,440 1,510 1,580 1,650 1,710 1,770 1,830 1,890 1,950 2,010 7 36.20 10.25
J60-14 1,260 1,350 1,430 1,500 1,580 1,650 1,720 1,790 1,860 1,920 1,980 2,040 2,100 7 36.70 10.45
L60-14 1,340 1,430 1,520 1,600 1,680 1,750 1,830 1,900 1,970 2,040 2,100 2,170 2,230 8 37.83 11.10
B60-15 780 840 890 930 980 1,030 1,070 1,110 1,150 1,190 1,230 1,270 1,300 5½ 31.85 7.80
C60-15 840 890 950 1,000 1,050 1,100 1,140 1,190 1,230 1,270 1,320 1,360 1,400 6 32.66 8.25
E60-15 950 1,010 1,070 1,130 1,190 1,240 1,300 1,350 1,400 1,440 1,490 1,540 1,580 6 33.83 8.70
F60-15 1,020 1,090 1,160 1,220 1,280 1,340 1,400 1,450 1,500 1,550 1,610 1,650 1,700 6½ 34.75 9.40
G60-15 1,100 1,180 1,250 1,310 1,380 1,440 1,500 1,560 1,620 1,680 1,730 1,780 1,830 7 35.73 9.70
H60-15 1,200 1,290 1,360 1,440 1,510 1,580 1,650 1,710 1,770 1,830 1,890 1,950 2,010 7 36.70 10.05
J60-15 1,260 1,350 1,430 1,500 1,580 1,650 1,720 1,790 1,860 1,920 1,980 2,040 2,100 7 37.20 10.25
L60-15 1,340 1,430 1,520 1,600 1,680 1,750 1,830 1,900 1,970 2,040 2,100 2,170 2,230 7 37.91 10.50
TABLE I-L
TIRE LOAD RATINGS, TEST RIMS, MINIMUM SIZE FACTORS, AND SECTION WIDTHS FOR 50 SERIES CANTILEVERED SIDEWALL TIRES
E50C-16  1,070 1,130 1,190 1,240 1,300 1,350 1,400 1,440 1,490 1,540 1,580 3½ 33.31 7.95
F50C-16  1,160 1,220 1,280 1,340 1,400 1,450 1,500 1,500 1,610 1,650 1,700 3½ 34.04 8.20
G50C-17  1,250 1,310 1,380 1,440 1,500 1,560 1,620 1,680 1,730 1,780 1,830 3½ 35.34 8.45
H50C-17  1,360 1,440 1,510 1,580 1,650 1,710 1,770 1,830 1,890 1,950 2,010 3½ 36.30 8.80
L50C-18  1,520 1,600 1,680 1,750 1,830 1,900 1,970 2,040 2,100 2,170 2,230 3½ 38.00 9.10
TABLE I-M
TIRE LOAD RATINGS, TEST RIMS, MINIMUM SIZE FACTORS, AND SECTION WIDTHS FOR 78 SERIES RADIAL PLY TIRES
AR78-13 720 770 810 860 900 940 980 1,020 1,060 1,090 1,130 1,160 1,200 4½ 29.55 6.50
BR78-13 780 840 890 930 980 1,030 1,070 1,110 1,150 1,190 1,230 1,270 1,300 4½ 30.31 6.75
CR78-13 840 890 950 1,000 1,050 1,100 1,140 1,190 1,230 1,270 1,320 1,360 1,400 5 31.13 7.15
AR78-14 720 770 810 860 900 940 980 1,020 1,060 1,090 1,130 1,160 1,200 4½ 30.08 6.40
BR78-14 780 840 890 930 980 1,030 1,070 1,110 1,150 1,190 1,230 1,270 1,300 4½ 30.84 6.60
CR78-14 840 890 950 1,000 1,050 1,100 1,140 1,190 1,230 1,270 1,320 1,360 1,400 5 31.67 7.00
DR78-14 890 950 1,010 1,070 1,120 1,170 1,220 1,270 1,320 1,360 1,410 1,450 1,490 5 32.26 7.20
ER78-14 950 1,010 1,070 1,130 1,190 1,240 1,300 1,350 1,400 1,440 1,490 1,540 1,580 5 32.86 7.40
FR78-14 1,020 1,090 1,160 1,220 1,280 1,340 1,400 1,450 1,500 1,550 1,610 1,650 1,700 5½ 33.78 7.85
GR78-14 1,100 1,180 1,250 1,310 1,380 1,440 1,500 1,560 1,620 1,680 1,730 1,780 1,830 6 34.78 8.30
HR78-14 1,200 1,290 1,360 1,440 1,510 1,580 1,650 1,710 1,770 1,830 1,890 1,950 2,010 6 35.77 8.60
JR78-14 1,260 1,350 1,430 1,500 1,580 1,650 1,720 1,790 1,860 1,920 1,980 2,040 2,100 6½ 36.47 8.95
AR78-15 720 770 810 860 900 940 980 1,020 1,060 1,090 1,130 1,160 1,200 4½ 30.66 6.25
BR78-15 780 840 890 930 980 1,030 1,070 1,110 1,150 1,190 1,230 1,270 1,300 4½ 31.38 6.45
CR78-15 840 890 950 1,000 1,050 1,100 1,140 1,190 1,230 1,270 1,320 1,360 1,400 5 32.24 6.85
ER78-15 950 1,010 1,070 1,130 1,190 1,240 1,300 1,350 1,400 1,440 1,490 1,540 1,580 5½ 33.58 7.45
FR78-15 1,020 1,090 1,160 1,220 1,280 1,340 1,400 1,450 1,500 1,550 1,610 1,650 1,700 5½ 34.28 7.70
GR78-15 1,100 1,180 1,250 1,310 1,380 1,440 1,500 1,560 1,620 1,680 1,730 1,780 1,830 6 35.30 8.15
HR78-15 1,200 1,290 1,360 1,440 1,510 1,580 1,650 1,710 1,770 1,830 1,890 1,950 2,010 6 36.23 8.45
JR78-15 1,260 1,350 1,430 1,500 1,580 1,650 1,720 1,790 1,860 1,920 1,980 2,040 2,100 6½ 36.98 8.80
KR78-15 1,290 1,380 1,460 1,540 1,620 1,690 1,770 1,830 1,900 1,970 2,030 2,090 2,150 6 37.03 8.70
LR78-15 1,340 1,430 1,520 1,600 1,680 1,750 1,830 1,900 1,970 2,040 2,100 2,170 2,230 6½ 37.66 9.00
MR78-15 1,420 1,520 1,610 1,700 1,780 1,860 1,940 2,020 2,090 2,160 2,230 2,300 2,370 6½ 38.35 9.20
NR78-15 1,500 1,600 1,700 1,790 1,880 1,970 2,050 2,130 2,210 2,280 2,360 2,430 2,500 7 39.17 9.71
TABLE I-N
155/70R13 630 650 665 685 705 725 740 760 780 800 820 835 855 4 27.17 5.93
155/70R15 690 710 730 750 770 790 810 830 850 870 890 910 930 4 29.20 5.93
TIRE LOAD RATINGS, TEST RIMS, MINIMUM SIZE FACTORS, AND SECTION WIDTHS FOR LOW SECTION TYPE R RADIAL PLY TIRES
20 22 24 26 28 30 32 34 36 38 40 (inches)
140R12 490 520 550 580 610 640 660 690 710 740 770 4 26.20 5.40
150R12 570 610 640 670 700 730 760 790 820 850 880 4 27.19 5.75
150R13 600 640 680 720 750 780 810 840 870 900 940 4 28.17 5.75
160R13 670 700 740 780 820 860 900 940 980 1,010 1,040 4½ 29.23 6.25
170R13 720 760 800 840 880 920 960 1,000 1,00 1,080 1,110 5 30.08 6.60
150R14 640 670 710 750 780 820 860 900 940 970 1,000 4 29.16 5.75
180R15 920 970 1,020 1,070 1,120 1,170 1,230 1,280 1,330 1,380 1,430 5 32.97 6.85
TABLE I-P
TIRE LOAD RATINGS, TEST RIMS, MINIMUM SIZE FACTORS, AND SECTION WIDTHS FOR SERIES 45 CANTILEVERED SIDEWALL TIRES
G45C-16 1,250 1,310 1,380 1,440 1,500 1,560 1,620 1,680 1,730 1,780 1,830 5 35.53 9.70
1 The letter H, S or V may be included in any specified tire size designation adjacent to or in place of the dash.
TABLE I-R
TIRE LOAD RATINGS, TEST RIMS, MINIMUM SIZE FACTORS, AND SECTION WIDTHS FOR 60 SERIES RADIAL PLY TIRES
CR60-13 840 890 950 1,000 1,050 1,100 1,140 1,190 1,230 1,270 1,320 1,360 1,400 6 31.58 8.60
DR60-14 890 950 1,010 1,070 1,120 1,170 1,220 1,270 1,320 1,360 1,410 1,450 1,490 6 32.72 8.65
ER60-14 950 1,010 1,070 1,130 1,190 1,240 1,300 1,350 1,400 1,440 1,490 1,540 1,580 6½ 33.50 9.10
1 The letters H, S or V may be included in any tire size designation adjacent to the R.
235/60R13 950 1,010 1,070 1,130 1,190 1,240 1,300 1,350 1,400 1,440 1,490 1,540 1,580 6 32.81 9.05
TABLE I-T
205/70R13 890 950 1,010 1,070 1,120 1,170 1,220 1,270 1,320 1,360 1,410 1,450 1,490 5½ 32.29 8.05
205/70R14 950 1,010 1,070 1,130 1,190 1,240 1,300 1,350 1,400 1,440 1,490 1,540 1,580 5½ 33.42 8.10
215/70R14 1,020 1,090 1,160 1,220 1,280 1,340 1,400 1,450 1,500 1,550 1,610 1,650 1,700 6 34.34 8.55
225/70R14 1,100 1,180 1,250 1,310 1,380 1,440 1,500 1,560 1,620 1,680 1,730 1,780 1,830 6 35.12 8.85
195/70R15 890 950 1,010 1,070 1,120 1,170 1,220 1,270 1,320 1,360 1,410 1,450 1,490 5½ 33.34 7.75
205/70R15 950 1,010 1,070 1,130 1,190 1,240 1,300 1,350 1,400 1,440 1,490 1,540 1,580 5½ 33.91 7.95
215/70R15 1,020 1,090 1,160 1,220 1,280 1,340 1,400 1,450 1,500 1,550 1,610 1,650 1,700 6 34.87 8.40
225/70R15 1,100 1,180 1,250 1,310 1,380 1,440 1,500 1,560 1,620 1,680 1,730 1,780 1,830 6 35.65 8.65
1 The letter H, S or V may be included in any specified tire size designation adjacent to the R.
TABLE I-U
TIRE LOAD RATINGS, TEST RIMS, MINIMUM SIZE FACTORS, AND SECTION WIDTHS FOR 60 SERIES CANTILEVERED TIRES
B60C-13 780 840 890 930 980 1,030 1,070 1,110 1,150 1,190 1,230 1,270 1,300 4½ 30.41 7.65
C60C-15 840 890 950 1,000 1,050 1,100 1,140 1,190 1,230 1,270 1,320 1,360 1,400 4 31.92 7.35
TABLE I-V
TIRE LOAD RATINGS, TEST RIMS, MINIMUM SIZE FACTORS, AND SECTION WIDTHS FOR 50 SERIES BIAS PLY TIRES
B50-13 780 840 890 930 980 1,030 1,070 1,110 1,150 1,190 1,230 1,270 1,300 6 30.84 9.15
C50-13 840 890 950 1,000 1,050 1,100 1,140 1,190 1,230 1,270 1,320 1,360 1,400 6½ 3 .48 9.40
D50-13 890 950 1,010 1,070 1,120 1,170 1,220 1,270 1,320 1,360 1,410 1,450 1,490 6½ 32.29 9.85
F50-14 1,020 1,090 1,160 1,220 1,280 1,340 1,400 1,450 1,500 1,550 1,610 1,650 1,700 7 34.10 10.20
G50-14 1,100 1,180 1,250 1,310 1,380 1,440 1,500 1,560 1,620 1,690 1,730 1,780 1,930 8 35.29 10.95
H50-14 1,200 1,290 1,360 1,440 1,510 1,580 1,650 1,710 1,770 1,830 1,890 1,950 2,010 8 36.24 11.35
M50-14 1,420 1,520 1,616 1,700 1,780 1,860 1,940 2,020 2,090 2,160 2,230 2,300 2,370 9 38.51 12.55
N50-14 1,500 1,600 1,700 1,790 1,880 1,970 2,050 2,130 2,210 2,280 2,360 2,430 2,500 9 39.17 12.85
F50-15 950 1,010 1,070 1,130 1,190 1,240 1,300 1,350 1,400 1,440 1,490 1,540 1,580 6½ 33.74 9.50
G50-15 1,100 1,180 1,250 1,310 1,380 1,440 1,500 1,560 1,620 1,680 1,730 1,780 1,830 7 35.38 10.35
H50-15 1,200 1,290 1,360 1,440 1,510 1,580 1,650 1,710 1,770 1,830 1,890 1,950 2,010 8 36.76 11.15
L50-15 1,340 1,430 1,520 1,600 1,680 1,750 1,830 1,900 1,970 2,040 2,100 2,170 2,230 8 31.94 11.65
N50-15 1,500 1,600 1,700 1,790 1,880 1,970 2,050 2,130 2,210 2,280 2,360 2,430 2,500 9 39.65 12.65
TABLE I-W
TIRE LOAD RATINGS, TEST RIMS, MINIMUM SIZE FACTORS, AND SECTION WIDTHS FOR 50 SERIES RADIAL PLY TIRES
BR50-13 780 840 890 930 980 1,030 1,070 1,110 1,150 1,190 1,230 1,270 1,300 6½ 30.84 9.15
CR50-13 840 890 950 1,000 1,050 1,100 1,140 1,190 1,230 1,270 1,320 1,360 1,400 6½ 31.48 9.40
GR50-14 1,100 1,180 1,250 1,310 1,380 1,440 1,500 1,560 1,620 1,680 1,730 1,780 1,830 8 35.29 10.95
JR50-14 1,260 1,350 1,430 1,500 1,580 1,650 1,720 1,790 1,860 1,920 1,980 2,040 2,100 8 36.74 11.60
GR50-15 1,100 1,180 1,250 1,310 1,380 1,440 1,500 1,560 1,620 1,680 1,730 1,780 1,830 7 35.38 10.35
HR50-15 1,200 1,290 1,360 1,440 1,510 1,580 1,650 1,710 1,770 1,830 1,890 1,950 2,010 8 36.76 11.15
JR50-15 1,260 1,350 1,430 1,500 1,580 1,650 1,720 1,780 1,860 1,920 1,980 2,040 2,100 8 37.24 11.35
LR50-15 1,340 1,430 1,520 1,600 1,680 1,750 1,820 1,900 1,970 2,040 2,100 2,170 2,230 8 37.94 11.65
TABLE I-X
195/50R15 650 690 730 770 810 850 890 920 955 990 1,020 1,050 1,080 6 30.16 7.91
225/50R16 880 940 1,000 1,060 1,110 1,160 1,210 1,255 1,300 1,345 1,390 1,435 1,475 6½ 33.34 8.98
285/50R15 1,260 1,350 1,430 1,500 1,580 1,650 1,720 1,790 1,860 1,920 1,980 2,040 2,100 8 36.84 11.26
265/50R16 1,160 1,235 1,310 1,385 1,450 1,520 1,580 1,645 1,709 1,765 1,820 1,875 1,930 8 36.55 10.71
TABLE I-Y
TIRE LOAD RATINGS, TEST RIMS, MINIMUM SIZE FACTORS, AND SECTION WIDTHS FOR ALL MILLIMETRIC 65 SERIES RADIAL PLY TIRES
195/65R350 815 860 905 950 990 1,030 1,070 1,115 1,155 1,195 1,235 1,275 1,315 105 30.70 7.48
205.65R375 920 970 1,020 1,070 1,120 1,170 1,220 1,265 1,310 1,355 1,400 1,445 1,490 105 32.65 7.76
TABLE I-AA
TIRE LOAD RATINGS, TEST RIMS, MINIMUM SIZE FACTORS, AND SECTION WIDTHS FOR P/80 ISO TYPE TIRES
P155/80R13 3 660 705 740 760 795 825 860 880 905 935 960 980 1,005 4½ 28.46 6.18
1 The letters H, S or V may be included in any specified tire size designation adjacent to the 80.
3 The letters D for diagonal and B for belted may be used in place of the R.
TABLE I-BB
TIRE LOAD RATINGS, TEST RIMS, MINIMUM SIZE FACTORS, AND SECTION WIDTHS FOR 40 SERIES RADIAL PLY TIRES
285/40R15 890 950 1,010 1,070 1,120 1,170 1,220 1,270 1,320 1,360 1,410 1,450 1,490 9½ 37.42 11.22
TABLE I-CC
TIRE LOAD RATINGS, TEST RIMS, MINIMUM SIZE FACTORS, AND SECTION WIDTHS FOR 35 SERIES RADIAL PLY TIRES
345-35R15 960 1,030 1,090 1,150 1,210 1,270 1,320 1,370 1,420 1,470 1,520 1,560 1,610 11½ 37.42 13.58
TABLE I-DD
TIRE LOAD RATINGS, TEST RIMS, MINIMUM SIZE FACTORS, AND SECTION WIDTHS FOR 55 SERIES RADIAL PLY TIRES
Tire size designation 1 16 18 20 22 24 26 28 30 32 34 36 38 40 (inches)
205/55R16 780 840 890 930 980 1,030 1,070 1,110 1,150 1,190 1,230 1,270 1,300 6 32.57 8.19
225/55R13 830 890 940 980 1,030 1,080 1,120 1,160 1,200 1,240 1,280 1,320 1,350 6 30.98 8.78
TABLE I-EE
TIRE LOAD RATINGS, TEST RIMS, MINIMUM SIZE FACTORS, AND SECTION WIDTHS FOR 45 SERIES RADIAL PLY TIRES
235/45R15 780 840 890 930 980 1,030 1,070 1,110 1,150 1,190 1,230 1,270 1,300 8 32.11 9.29
TABLE I-FF
TIRE LOAD RATINGS, TEST RIMS, MINIMUM SIZE FACTORS, AND SECTION WIDTHS FOR P/70 SERIES ISO TYPE TIRES, STANDARD LOAD
P20570R13 3 870 925 980 1025 1070 1115 1155 1200 1235 1280 1310 1345 1390 5½ 31.73 7.99
SAFETY STANDARD NO. 109
TABLE IIMINIMUM BREAKING ENERGY VALUES (INCH-POUNDS)
TABLE IIAFOR BIAS PLY TIRES WITH SIZE DESIGNATION OF 6.00 INCHES (OR 155 MILLIMETERS) AND ABOVE AND 70 SERIES TIRES
32 lb/in2 36 lb/in2 40 lb/in2 300 KPa
Rayon 1,650 in-lbs 2,574 in-lbs 3,300 in-lbs 1,650 in-lbs
Nylon or polyester 2,600 in-lbs 3,900 in-lbs 5,200 in-lbs 2,600 in-lbs
TABLE IIBFOR BIAS PLY TIRES WITH SIZE DESIGNATION
BELOW 6.00 INCHES (OR 155 MILLIMETERS)
Rayon 1,000 in-lbs 1,875 in-lbs 2,500 in-lbs 1,000 in-lbs
Nylon or polyester 1,950 in-lbs 2,925 in-lbs 3,900 in-lbs 1,950 in-lbs
TABLE IICFOR RADIAL PLY TIRES
Below 160 millimeters 1,950 in-lbs 2,925 in-lbs 3,900 in-lbs 1,950 in-lbs
160 millimeters or above 2,600 in-lbs 3,900 in-lbs 5,200 in-lbs 2,600 in-lbs
TABLE IIITEST INFLATION PRESSURES
Maximum permissible inflation pressure [(in pounds per square inch)] 32 lb/in2 36 lb/in2 40 lb/in2 300 KPa
Pressure [(in pounds per square inch)] to be used in tests for physical dimensions, bead unseating, tire strength and tire endurance 24 lb/in2 28 lb/in2 32 lb/in2 180 KPa
Pressure [(in pounds per square inch)] to be used in test or high speed performance 30 lb/in2 34 lb/in2 38 lb/in2 220 KPa