What is the difference between 91v and 91h?
1 Answers
The difference between 91v and 91h lies in their speed ratings: 91v indicates a maximum speed of 240 km/h under load-bearing conditions, while 91h represents a maximum speed of 210 km/h under the same conditions. Here, 91 is the load index, denoting the standard load capacity the tire can bear at different pressures—a 91-rated tire can support 615 kg at 2.5 Bar. Methods for tire maintenance include: 1. Regularly checking tire pressure; 2. Inspecting tires for bulges, cracks, cuts, punctures, or abnormal wear; 3. Removing foreign objects like stones, metal pieces, or nails from tire treads; 4. Performing wheel alignment or tire balancing.