1. The role of tires:

To support the body

Transfer braking and driving power to the road surface.

Absorb the vibration from the road

Change and maintain the direction of travel

2, the tread pattern

There are various grooves and notches on the surface where the tire comes into contact with the road. These grooves and grooves are called fetal ridges and can be rib shaped, rib shaped, rib shaped, etc

3, the function and structure of the tire

There are two types of tires: tubeless and tubeless. Tubeless tires have an airtight layer on their inner walls, forming an integral structure. The airtight layer can be used as a substitute for inner tubes. The tire rim prevents air from escaping from the tire.