What does 91V on car tires mean?
2 Answers
Tire marking 91V refers to the load index and speed rating. The number 91 represents the load index, indicating a maximum load capacity of 615Kg per tire, while the letter V signifies that the tire's maximum allowable speed is 240km/h. Specification markings: Tires are crucial components of vehicles, and they come in various specifications and models suitable for different vehicle types. These specification markings are typically found on the tire sidewall as a series of alphanumeric characters, representing the tire's tread width, aspect ratio, type, rim size, load index, and speed rating. Speed ratings: Based on their maximum sustainable speeds, tires are classified into different speed ratings from A to Z, with grade A further divided into eight subcategories (A1-A8). Generally, the later the letter appears in the alphabet for the speed rating, the better the tire's performance.
As someone who often pays attention to car details, I find the 91V marking on tires quite interesting. 91 refers to the load index, indicating that this tire can bear a weight of 615 kilograms; V is the speed rating, meaning it can handle a maximum speed of 240 kilometers per hour. Simply put, it's like the tire's 'certificate of capability'—each combination of numbers and letters follows specific standards to ensure it matches the needs of different vehicle models. Using unsuitable tires, such as those overloaded or driven too fast, can lead to unstable tire pressure or premature blowouts, compromising driving safety. When purchasing tires, besides checking the size, it's essential to match the vehicle's manual requirements to ensure smoother and more durable driving. It's advisable to regularly inspect tire wear, especially before highway trips, and not overlook these small markings.
