What do the letters for maximum tire speed mean?

1 Answers
VonParker
07/29/25 10:34pm
Tire maximum speed is indicated by letter codes, with different letters representing different maximum speeds. Below is a detailed introduction to automobile tire specifications: 1. Specification model representation: Tires are important components of automobiles, and there are many specification models of tires, with different models suitable for different types of vehicles. The specification model identification is usually on the sidewall of the tire, represented by a series of alphanumeric characters, corresponding to the tire's tread width, aspect ratio, type, rim size, load index, and speed rating. 2. Speed rating: According to the different maximum speeds they can withstand, tire speed ratings can be divided into different grades from A to Z, with grade A further subdivided into eight different levels from A1 to A8. The further back the letter representing the tire's speed rating is, the better the tire's performance.
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