The speed rating, represented by a one- or two-letter code on the tire
sidewall, indicates the maximum speed at which a tire can be safely
operated when it is properly loaded and inflated.
Code |
mph |
km/h |
Code |
mph |
km/h |
Code |
mph |
km/h |
B |
31 |
50 |
Q |
100 |
160 |
V |
>130 |
>210 |
J |
62 |
100 |
R |
106 |
170 |
ZR |
149-168 |
240-270 |
L |
75 |
120 |
S |
112 |
180 |
W |
168 |
270 |
M |
81 |
130 |
T |
118 |
190 |
(W) |
>168 |
>270 |
P |
94 |
150 |
H |
130 |
210 |
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