What is the purpose of tire rotation?

[OBrandon]

Tire rotation is performed to avoid uneven tire wear caused by the following four factors: 1. Asymmetric vehicle weight distribution: For example, most vehicles have front-mounted engines and transmissions, and fuel tanks, batteries, and driver positions are not symmetrically distributed. This leads to uneven force distribution on the wheels, causing tires under greater load to wear out faster. 2. Different turning speeds: According to driving habits in China, left turns are generally taken at higher speeds than right turns. This results in greater load-bearing on the right-side tires compared to the left, accelerating wear on the left-side tires. 3. Influence of wheel camber: To facilitate steering and reduce wheel bearing load, most vehicles have front wheels designed with a camber angle, creating an inverted "V" shape between the tire and the ground. When the vehicle is mostly unloaded, the outer edges of the front tires wear faster than the inner edges. 4. Effect of braking force distribution: To improve braking performance, the braking force on the front wheels is generally much greater than on the rear wheels. This also causes the front tires to wear faster than the rear tires.