Difference Between 91V and 91W Car Tires?
2 Answers
Here are the specific differences between 91V and 91W car tires: 1. Meaning: V indicates that the maximum speed this tire can withstand is 240 km/h, while W indicates a maximum speed of 270 km/h. 2. Speed rating: A 91W tire refers to a tire that can bear a load of 615 kg and withstand a maximum speed of 270 km/h. Below is extended information about car tire specifications: (1) Tires are crucial components of a car, and they come in many specifications and models, with different ones suitable for different vehicle types. The specification and model identifiers are usually found on the sidewall of the tire, represented by a series of alphanumeric characters that correspond to the tire's tread width, aspect ratio, type, rim size, load index, and speed rating. (2) Based on the different maximum speeds they can withstand, tire speed ratings can be divided into various grades from A to Z, with grade A further subdivided into eight different levels from A1 to A8. Generally, the further back the letter representing the tire's speed rating is in the alphabet, the better the tire's performance.
I've always been fascinated by tire markings and know that the difference between 91V and 91W mainly lies in the speed rating. The number 91 is the same for both, indicating a load capacity of 615 kg, suitable for most family cars. V stands for a maximum speed of 240 km/h, while W is 270 km/h, meaning W-rated tires are more suitable for high-speed driving or sports car scenarios. I've noticed that W-rated tires usually use tougher materials, providing better stability during turns or emergency braking, but they come at a higher cost. For regular city driving, V-rated tires are sufficient—cost-effective and practical; drivers who pursue speed should opt for W. I also recommend regularly checking tire markings and not overlooking the importance of matching them with actual driving speeds.
