Automobile tire is one of the important parts of automobile. It is in direct contact with the road surface and works together with automobile suspension to reduce the impact of automobile driving, thus ensuring good riding comfort and riding comfort of automobile. Ensure good adhesion between the wheel and the road surface; Improve the traction, braking and passability of the car; Bearing the weight of the car, people pay more and more attention to the important role of tires in the car.
The wheels of automobiles generally use radial tires. The specifications of radial tire include width, length-width ratio, inner diameter and speed limit symbol. Take Toyota Crown 3.0 as an example, its tire size is 195/65R 15, that is, the width between the two sides of the tire is 195mm, and 65 represents the height-width ratio. r？ Stands for the word RADIAL, which means radial tire. 15 is the inner diameter of the tire in inches. Some tires are also marked with speed limit symbols, which are represented by letters such as P, R, S, T, H, V, Z, etc. (Photo/Text/Photo: Zeng Huiwen) @20 19