What is the difference between 91V and 91H on tires?
2 Answers
The difference between the two lies in the maximum supported speed of the tires. V and H represent speed ratings, with different letters indicating different maximum speed limits. V stands for a maximum supported speed of 240 km/h, while H represents a maximum supported speed of 210 km/h. As for the preceding number, it denotes the load index. What does that mean? 91 indicates that the maximum load capacity supported by a single tire is 615 kg. What is the difference between 91V and 91H on tires? Do you know now?
When I first started driving, I also didn't understand the letters and numbers on tires, like the difference between 91V and 91H. The key lies in the letter part. The number 91 indicates the load capacity, which is basically the same, able to bear about 615 kilograms. But V and H represent speed ratings. H-rated tires can only go up to 210 kilometers per hour, while V-rated tires can reach 240. This means if you often drive over 210 km/h, using H-rated tires may pose a risk of blowouts, whereas V-rated tires are designed to be more robust for high-speed driving. Different car models also need to be considered. For regular family cars, H-rated tires are sufficient and cost-effective, but for sports cars, it's better to choose V-rated tires to ensure safety. Actually, when changing tires, they should match the recommendations in the vehicle manual. Mismatched tires might affect handling performance and even insurance claims. It's advisable to have a professional shop check your tire markings.
