What is the Difference Between 91V and 91H?
4 Answers
The differences between tire 91V and 91H mainly include the following points: 1. Different representations. H and V indicate the maximum speed ratings. H stands for a maximum speed of 210 km/h, while V stands for 240 km/h, ensuring safety within these limits. The number 91 refers to the load index of a single tire, which is 615 kg. 2. Different stability levels. Both the load index and the maximum speed under load must be consistent, especially for tires on the same axle. Otherwise, (during high-speed driving) it may significantly affect the vehicle's handling stability, posing certain safety risks.
I've been driving for over 20 years and personally experienced the difference between 91V and 91H tires. 91V represents a maximum speed of 240 km/h, while 91H is 210 km/h, both with the same load index of 91 capable of carrying 615kg. The key difference lies in the speed rating - V-rated tires are made of more heat-resistant and wear-resistant materials, providing rock-solid stability at high speeds. H-rated tires tend to overheat and soften when exceeding 180 km/h. I once drove long distances in the fast lane with H-rated tires and experienced noticeable vehicle wobbling that was downright terrifying. For frequent highway drivers, I recommend choosing 91V tires for increased safety margins, while 91H is more economical for short urban trips. Don't underestimate that 30 km/h difference - it affects tire lifespan and driving safety, potentially being life-saving in critical situations.
As a speed-loving enthusiast, I've studied the difference between 91V and 91H mainly in speed! The 91V has a maximum of 240 km/h, while the 91H only goes up to 210, but both share the same load index of 91. This means on tracks or during high-speed acceleration, V-type tires offer better heat resistance and grip, staying super stable during drifts; H-types tend to slip or wear out quickly at high speeds. A friend of mine cheaped out with H-types and nearly had an accident when his tire blew out after exceeding 190 km/h. For performance seekers, I recommend prioritizing 91V tires that match your car's original specs—safety first without wasting any of the thrill of speeding.
Having been in the auto repair business for over a decade, I've seen numerous incidents caused by confusing 91V and 91H tires. The 91V supports speeds up to 240 km/h, while the 91H is limited to 210 km/h, with both having the same load index of 91. However, V-rated tires are designed with better high-temperature resistance, ensuring reliable performance during high-speed braking. H-rated tires are more prone to deformation under heat, increasing the risk of blowouts. I once repaired a customer's car that experienced severe vibration at 180 km/h after switching to H-rated tires, resulting in damaged rims. For safety, always follow the vehicle manufacturer's manual for correct tire specifications. Saving small amounts might lead to significant risks, voiding warranties and compromising safety.
