Ever notice, or hear someone mention, a letter following the size description of a tire? That letter defines the speed rating of any given tire.
Below is the breakdown of the most common ratings currently offered on most mass-produced tires.
Below is the breakdown of the most common ratings currently offered on most mass-produced tires.
| T | 118 mph | 190 km/h |
| U | 124 mph | 200 km/h |
| H | 130 mph | 210 km/h |
| V | 149 mph | 240 km/h |
| W | 168 mph | 270 km/h |
| Y | 186 mph | 300 km/h |
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| Photo: Matthieu Lambert |