Contents: Speed index ↳ Tire manufacturer details ↳
Example:
195 = tire width in mm
/70 = ratio of tire width to height (tire height is 70% of the width)
If there is no height to width ratio data (e.g. 155 R 13), it means that the tire has a "normal" ratio. For radial tires, it is 82%.
H = speed class, H: up to 210 km/h (not always given on new tires).
R = radial tire
14 = wheel rim diameter in inches
89 - load index
Attention! If there is a designation M+S between the numbers 14 and 39, this means that the tires have a winter profile. H = index of the maximum permissible speed. The speed index is the last place in the tire designation, it applies to both summer and winter tires.
Speed index
| Index | Maximum permissible speed, km/h |
| Q | 160 |
| S | 180 |
| T | 190 |
| H | 210 |
| V | 240 |
| W | 270 |
Tire manufacturer details
The tire manufacturer's data is indicated on the tire in the form of a manufacturer's code.
Example: DOT CUL2 UM8 064 v TUBELESS
DOT = Department of Transportation (US Department of Transportation)
CU = abbreviated designation of the manufacturer
L2 = tire size
UM8 = busbar execution
064 = production date = 6th week of 1994
v = symbol of this decade (1990-1999)
TUBELESS = tubeless tire
(TUBETYPE = tube tire)