What is the tire speed rating?

1 Answers
DakotaDella
07/30/25 2:08am
The tire speed rating refers to the maximum speed at which a tire can carry a specified load under defined conditions. Most tires currently on the market have ratings ranging from S to Y, where W represents a speed of 270 km/h and V represents 240 km/h. Generally, the higher the tire speed rating, the better its heat resistance, as it must withstand both the heat generated by the tire itself at maximum speed and the external environmental heat. Functions of tires: 1. Transmit driving force, braking force, and steering force to enable vehicle control; 2. Support the vehicle load; 3. Reduce and absorb vibrations and impacts during driving.
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