What's the difference between 91V and 91H tires?
3 Answers
The difference between 91V and 91H tires lies in their speed ratings. 91 is the load index, indicating the maximum load capacity the tire can bear under different air pressures. A 91-rated tire can support 615KG at 2.5Bar. V and H are speed symbols, representing the maximum speed the tire can sustain: V=240km/h, H=210km/h. Here are the related details: 1. "65" is the aspect ratio of the tire, which is the ratio of the tire's height to its width. Here, it means the height is 65% of the width. The smaller the number, the flatter the tire appears. 2. "R" refers to the tire's construction, indicating that this is a radial tire where the cord plies are arranged radially in the tire body. 3. "B" indicates a bias-ply construction. Currently, bias-ply tires for passenger cars are no longer in use. 4. "15" represents the rim diameter in inches. This tire must be matched with a 15-inch rim; otherwise, it cannot be installed. 5. "89" is the load index: the maximum load capacity for this tire is 1,279 pounds. Different load indices correspond to different maximum load capacities.
Having driven for so many years, I deeply understand that tire choice is crucial for safety. The difference between 91V and 91H mainly lies in the speed rating. The number 91 refers to the load capacity, approximately 615 kg per tire, which is the same for both. However, V stands for a maximum speed of 240 km/h, while H only goes up to 210 km/h. This means that at high speeds or in emergency situations, such as hard braking or sharp turns, 91V tires are designed to be more durable, offering better grip and stability. I've seen accidents where people opted for H-rated tires on sports cars to save money, only to lose control—terrifying. My advice is to choose based on your driving habits: if you drive fast, prioritize 91V; otherwise, 91H is more practical. Also, remember to regularly check tire wear and pressure—safety should always come first.
As a car modification enthusiast, tires are the core of performance. The difference between 91V and 91H is too obvious in speed ratings. The load capacity remains the same at 91, but the V rating allows for speeds up to 240 km/h, significantly higher than H's 210 km/h. This means V-rated tires are made of superior materials, offering quicker handling response and better stability, especially during high-speed cornering. When modifying my car, I prioritize 91V to enhance the sense of power, and it pairs perfectly with a sports chassis. If used on regular tires, choosing H would hold back the handling. Price-wise, V is more expensive, but don’t hesitate if you’re after performance—just go for it based on your budget.
