What does 91h mean on a tire?
A: Hello, the number stands for the load index (91 means tires tested up to 1358lbs), and the speed index (H rated tires tested up to 130mph, T tested up to 118mph). Letters ranging from A to Z represent the speed rating. Each letter denotes the maximum speed a tyre can sustain under its recommended load capacity. In our example, “H” is equivalent to a maximum speed of 130 mph (209 kph).
Is V or H better on tires?
H-rated tires are thoroughly tested to safely handle speeds up to 130 mph, while V-rated tires show reliable performance at sustained speeds up to 149 mph, which is an important distinction for vehicles that travel at higher speeds. Shane N. Are you ready now to conquer the world of tire speed ratings? The top speed is different, the 91v top speed is 240 kilometers per hour, and the 91h top speed is 210 kilometers per hour.These two speed ratings are most frequently made for performance tires, but which one is better? The main difference between 91v vs 91h tires is definitely speed. H speed-rated tires have a capability of 130 mph, while the v has a maximum speed of 149 mph.
Can I fit H-rated tyres instead of V?
No, you should NEVER do this. Using a tyre with too low a speed rating for the car increases the risk of tyre failure at high speeds. Also, doing this can potentially invalidate your insurance. What Tire Speed Rating Do You Need? Even in states where rural speed limits are 75 mph, most drivers will stay well below the speed limitations of H-rated tires. Commuters and family car drivers will likely be quite satisfied with S or T tires.