What is the difference between 91h and 91v tires?
2 Answers
The difference between 91h and 91v tires lies in their respective representations: 91h indicates the tire load index, where 91 corresponds to a maximum load capacity of 615 kilograms per tire, and h represents the speed rating, with h indicating a maximum speed of 210 kilometers per hour under specified load conditions; 91v denotes the load coefficient and tire speed limit, where 91 signifies a load capacity of 615 kilograms per tire, and v indicates an allowable driving speed of 240 kilometers per hour. Automotive tires are one of the crucial components of a vehicle, directly contacting the road surface and working in conjunction with the vehicle's suspension to mitigate impacts during driving, ensuring excellent ride comfort and smooth operation; they also maintain good adhesion between the wheels and the road surface, enhance the vehicle's traction, braking, and off-road capabilities, and bear the weight of the vehicle.
A few days ago, we were chatting about tires in the car enthusiasts' group, and I also thought about the difference between 91H and 91V. The number 91 represents the load capacity, which is the same at 615 kilograms for both. The main difference lies in the speed rating: H indicates a maximum speed of 210 km/h, while V can go up to 240 km/h. It's like choosing the sole material of shoes—one is suitable for jogging, the other for sprinting. My friend who frequently drives on highways always recommends V-rated tires, believing they offer better stability and less drifting in turns. However, if you mostly drive in the city, H-rated tires are sufficient. V-rated tires are slightly more expensive, but safety comes first, especially in summer when highways are prone to overheating. V-rated tires handle high temperatures better, so it's not worth saving a bit of money at the expense of your car or safety. When changing tires, consider your driving habits—don’t blindly follow trends, or you’ll waste money and compromise safety.
