TITLE 92: TRANSPORTATION
CHAPTER I: DEPARTMENT OF TRANSPORTATION
SUBCHAPTER e: TRAFFIC SAFETY (EXCEPT HAZARDOUS MATERIALS)
PART 428 UNSAFE OPERATING CONDITIONS OF PASSENGER CAR TIRES
SECTION 428.APPENDIX A TIRE SIZE DESIGNATIONS AND TYPES

Section 428.APPENDIX A   Tire Size Designations and Types

 

The purpose of this Appendix is to show the tire size designations and types listed in Federal Motor Vehicle Safety Standard 109 (49 CFR 571.109), as amended.  This Appendix lists, under each type of tire, the size designation of the smallest and the largest tire for each rim size shown in Standard 109 under that type of tire.  All similar intermediate size designations for each rim size listed herein under each tire type are considered to be included.  (Note:  The rim size is the two digit number, such "13" of "16", at the end of each tire size designation.)

 

A)

Conventional and Low Section Height Bias Ply Tires:

 

6.00-13

through

7.00-13

 

6.00-14

"

9.50-14

 

6.00-15

"

9.15-15, plus L84-15

 

6.00-16

"

7.50-16

 

6.50-17

"

 

 

The letter "H", "S", or "V" may be included in any specified tire size designation adjacent to or in place of the "dash."

B)

"70 Series" Bias Ply Tires:

 

A70-13

through

D70-13

 

D70-14

"

L70-14

 

C70-15

"

L70-15

 

The letter "H", "S", or "V" may be included in any specified tire size designation adjacent to or in place of the "dash".

C)

Bias Ply Tires:

 

 

 

"Super Balloon" Sizes

 

 

 

4.80-10

through

5.90-10

 

5.20-12

"

6.20-12

 

5.20-13

"

6.90-13

 

5.20-14

"

6.45-14

 

7.20-15

"

6.40-15

 

"Low Section" Sizes

 

 

 

5.00-12

through

6.00-12

 

5.00-13

"

7.50-13

 

5.50-15L

"

7.00-15L

 

"Super Low Section"

 

 

 

Sizes

 

 

 

145-10/5.95-10

 

 

 

125-12/5.35-12

through

155-12/6.15-12

 

135-13/5.65-13

"

185-13/7.35-13

 

135-14/5.65-14

"

155-14/6.15-14

 

165-14

"

255-14

 

125-15/5.35-15

"

175-15/7.15-15

 

165-15

"

235-15

 

5.0-15

"

5.5-15

 

The letter "H", "S", or "V" may be included in any specified tire size designation adjacent to or in place of the "dash".

D)

Dash ( – ) Radial Ply Tires:

 

 

 

145-10

 

 

 

125-12

through

155-12

 

135-13

"

195-13

 

135-14

"

225-14

 

125-15

"

240-15

 

185-16

 

 

 

165-400

 

 

 

The letter "H", "S", or "V" may be included in any specified tire size designation adjacent to or in place of the "dash".

E)

"77 Series" Bias Play Tires:

 

 

5.9-10

 

 

 

5.9-12

through

6.2-12

 

6.2-13

"

6.9-13

 

G77-14

 

 

 

6.2-15

through

6.9-15

 

The letter "H", "S", or "V" may be included in any specified tire size designation adjacent to or in place of the "dash".

F)

Type "R" Radial Ply Tires:

 

 

5.20R10

 

 

 

5.22R12

through

5.60R12

 

5.00R13

"

7.25R13

 

5.20R14

"

7.50R14

 

5.60R15

"

7.60R15

 

The letter "H", "S" or "V" may be included in any specified tire size designation adjacent to the "R".

G)

"70 Series" Type "R" Radial Ply Tires:

 

 

AR70-13

through

DR70-13

 

CR70-14

"

LR70-14

 

DR70-15

"

MR70-15

 

The letters "HR", "SR", or "VR" may be included in any specified tire size designation adjacent to or in place of the "dash".

H)

Type "R" Radial Ply Tires:

 

 

145R10

 

 

 

125R12

through

155R12

 

135R13

"

195R13

 

135R14

"

225R14

 

125R15

"

235-R15

 

The letter "H", "S" or "V" may be included in any specified tire size designation adjacent to the "R".

J)

"78 Series" Bias Ply Tires:

 

 

 

A78-13

through

D78-13

 

B78-14

"

J78-14

 

A78-15

"

N78-15

 

The letter "H", "S", or "V" may be included in any specified tire size designation adjacent to or in place of the "dash".

K)

"60 Series" Bias Ply Tires:

 

 

 

A60-13

through

D60-13

 

D60-14

"

L60-14

 

D60-15

"

L60-15

 

The letter "H", "S", or "V" may be included in any specified tire size designation adjacent to or in place of the "dash".

L)

Series 50 Cantilevered Sidewall Tires:

 

 

E50C-16

through

F50C-16

 

G50C-17

"

H50C-17

 

L50C-18

 

 

 

The letters "H", "S", or "V" may be included in any specified tire size designation adjacent to or in place of the "dash".

M)

"78 Series" Radial Ply Tires:

 

 

AR78-13

through

CR78-13

 

BR78-14

"

JR78-14

 

AR78-15

"

LR78-15

 

The letter "H", "S", or "V" may be included in any specified tire size designation adjacent to the "R".

O)

"Low Section" Type "R" Radial Ply Tires:

 

 

140R12

through

150R12

 

150R13

"

170R13

 

150R14

 

 

 

180r15

 

 

 

The letter "H", "S", or "V" may be included in any specified tire size designation adjacent to the letter "R".

P)

Series 45 Cantilevered Sidewall Tires:

 

 

F45C-16

 

 

 

The letter "H", "S, or "V" may be included in any specified tire size designation adjacent to or in place of the "dash".

R)

"60 Series" Radial Ply Tires:

 

 

AR60-13

through

ER60-13

 

FR60-14

"

GR60-14

 

ER60-15

"

LR60-15

 

The letter "H", "S", or "V" may be included in any specified tire size designation adjacent to or in place of the "dash".

S)

"60 Series" Radial Ply Tires:

 

 

185/60 R 13

 

 

 

205/60 R 14

through

245/60 R 14

 

255/60 R 15

 

 

 

The letter "H", "S", or "V" may be included in any specified tire size designation adjacent to the "R".

T)

"70 Series" Radial Ply Tires:

 

 

205/70 R 13

 

 

 

205/70 R 14

through

225/70 R 14

 

195/70 R 15

"

255/70 R 15

 

The letter "H", "S", or "V" may be included in any specified tire size designation adjacent to the letter "R".

U)

"60 Series" Cantilevered Tires:

 

 

C60C-15

 

 

 

The letter "H", "S", or "V" may be included in any specified tire size designation adjacent to or in place of the "dash".

V)

Series "50" Bias Ply Tires:

 

 

 

H50-14

 

 

 

The letter "H", "S", or "V" may be included in any specified tire size designations adjacent to or in place of the "dash".