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What do 91V and 92V on tires mean?

2 Answers

LeEmily

09/02/25 5:56am

Tire markings 91V and 92V indicate the load index and speed rating: 1. 91 represents the load index, meaning each tire's maximum load capacity is 615 kg, while V indicates the tire's maximum permitted speed is 240 km/h. 2. 92 denotes each tire's maximum load capacity of 630 kg, with V similarly representing a maximum permitted speed of 240 km/h. Below are specific details about automotive tire specifications: 1. Specification model representation: Tires are crucial automotive components with various specifications suited for different vehicle types. These specifications are typically marked on the tire sidewall as a series of alphanumeric characters, corresponding to tread width, aspect ratio, type, rim diameter, load index, and speed rating. 2. Speed rating classification: Based on maximum sustainable speeds, tire speed ratings range from A-Z, with grade A further divided into eight subcategories (A1-A8). Letters appearing later in the alphabet indicate superior tire performance.

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VanRuby

09/14/25 8:01am

The numbers 91V and 92V on tires refer to the load capacity and speed rating represented by those digits and letters. 91 and 92 are load indices, meaning 91 can bear a maximum load of 615 kg, while 92 can handle up to 630 kg. That 15 kg difference becomes quite noticeable when carrying heavy loads. The 'V' is a speed symbol, indicating the tire's maximum safe speed of 240 km/h when fully loaded. When I first started driving, I didn't understand these details either. Later, I realized that mismatched tire specifications for a vehicle—like using lower load-rated tires on my compact car—could cause tires to deform and become unstable during high-speed turns, plus increase braking distance. I recommend beginners develop the habit of checking those small markings on tire sidewalls. Before replacing tires, consult your vehicle's manual for recommended specifications. Regular tire wear inspections can also improve fuel efficiency. Safety comes first—it affects peace of mind during every drive. Never prioritize cheap options blindly. Properly matched tires ensure smoother, more reliable handling.

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