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Passenger Metric | Light Truck Metric | European Metric

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