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Tire classification and structure

Tire classification:

A tire structure that has been used since a long time ago that constitutes a cord of the carcass at an angle (about 38 degrees) to the direction of travel of the tire.

A structure in which the arrangement of the carcass cords is 90 degrees or nearly 90 degrees with respect to the traveling direction of the tire, and the belt is used to increase the strength of the tire.
Compared with bias tires, radial tires have the following characteristics:
Good steering stability, full cornering performance, good wear resistance, low heat generation, low rolling resistance, fuel cost savings, strong traction, less slippage, and good ride comfort at high speeds.

Tyre inside the tire and inflated
Composition: tire + inner tube + pad + rim
Correct use management method:
Choose a suitable inner tube, and the new tire must use a new inner tube.
- Radial tires should use inner tubes for radial tires.
If there is no air pressure, if the inner tube width is deformed by more than 10%, it cannot be used continuously.
When you first start to inflate, you should first make the inner tube and the pad with the low pressure, and then fill it with the appropriate air pressure.

The inner tube is not used, and a special rubber (airtight layer) in place of the inner tube is used on the inner surface of the tire to ensure the tire airtight performance.
Composition: tire (inner seal) + rim
During the running of the tubeless tire, even if there is a foreign object such as a nail, the air pressure will not decrease quickly.

This kind of tire is used for spring, summer and autumn with temperatures above 0°. In order to be able to display excellent maneuverability and braking performance on wet and dry roads, it is required to have a large contact area with the ground to increase the friction between the tire and the ground. Therefore, a simple block pattern is often used in the tread design to increase the contact surface with the ground. Moreover, in order to enhance the drainage performance on a wet road surface, the grooves are mostly linear in the circumferential direction. Tires that do not have special seasonal signs are summer tires.

This type of tire combines the characteristics of snow tires and summer tires, and its pattern is more complicated than summer tires. In order to be able to exert superior braking and handling performance on snow, snow tires have more fine grooves than summer tires, but all-weather tires cannot perform braking performance 100% on low temperature and snow surfaces, so It is safer to use special snow tires in the area.

Tires used exclusively in low temperature and snow conditions in winter. The tread is designed as a block with many small grooves, and in order to show excellent braking and handling performance in winter, the grooves are usually deep and wide. Tread rubber is a special formulation that is resistant to low temperatures and maintains its softness and good friction even at low temperatures. Studded tires were developed to improve braking and handling on the ice, but since 1987, studless snow tires are gradually replacing studded tires because of their superior performance, because studded tires are very Great noise and air pollution. Recently, with the development of tire technology and raw materials, the performance of the nailless snow tires on the ice has been greatly improved.