Illinois Administrative Code
Title 92 - TRANSPORTATION
Part 428 - UNSAFE OPERATING CONDITIONS OF PASSENGER CAR TIRES
Appendix A - Tire Size Designations and Types

Universal Citation: 92 IL Admin Code ยง A
Current through Register Vol. 48, No. 38, September 20, 2024

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

5.22 R12

through

5.60 R12

5.00R13

"

7.25 R13

5.20R14

"

7.50R14

5.60R15

"

7.60 R15

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".

Disclaimer: These regulations may not be the most recent version. Illinois may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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