What does 91w mean on a car tire?
1 Answers
91w on a car tire refers to the tire's specifications. The number 91 indicates the load index, meaning the tire can bear a maximum weight of 615 kilograms. The letter w represents the speed rating, indicating the tire's maximum safe speed is 270 km/h. Functions of tires: 1. Ensure good ride comfort and driving smoothness; 2. Provide excellent adhesion between the wheels and the road surface, improving traction, braking, and off-road capability; 3. Transmit driving force, braking force, and steering force to enable vehicle control; 4. Support vehicle load; 5. Reduce and absorb vibrations and impacts during driving.