Tire function: The primary function of the tire is to carry the weight of the vehicle and provide traction and braking on the road. Interpretation of the main information on the side of the tire: There are many important pieces of information that are molded to the side of the tire, such as specifications, speed grades, load index, flatness ratio, and important safety. The tire structure tread, shoulder, sidewall, toe, carcass, belt, inner liner and other components are combined to form a tire structure.