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How to Read a Tire Sidewall (Light Truck Metric)
7.5

R

16

LT

D

112/107

Q

Nominal Section Width (inches)

Construction Code (radial)

Rim Diameter

Light Truck Tire

Load Range

Load Index (single/dual)

Speed Symbol

31

x

10.50

R

15

LT

C

109

Q

Nominal Overall Diameter (inches)


Nominal Section Width (inches)

Construction Code (radial)

Rim Diameter

Light Truck Tire

Load Range

Load Index

Speed Symbol

Speed Symbol

Speed Category

N

87 mph (140 km/h)

P

93 mph (150 km/h)

Q

99 mph (160 km/h)

R

106 mph (170 km/h)

S

112 mph (180 km/h)

T

118 mph (190 km/h)

H

130 mph (210 km/h)



Load Range

Ply Rating

A

2

B

4

C

6

D

8

E

10

F

12

G

14

H

16

J

18

L

20

M

22

N

24

