What are the main causes of severe wear in the middle of a tire?

[Toni]

The main cause of severe wear in the middle of a tire is excessive tire pressure. Below is a brief introduction to tire wear: Abnormal wear in the middle of the tire: Currently, the tire pressure is much higher than the standard pressure, which increases the rigidity of the tire and reduces the contact area with the ground, leading to excessive wear in the middle over time. Excessive tire pressure also causes the tire to overstretch. As the car drives and the tire temperature rises, the tire pressure will further increase, making the ride more bumpy and increasing the risk of a blowout when encountering obstacles. Abnormal wear on both sides of the tire: This is caused by insufficient tire pressure or the car being overloaded. When driving with low tire pressure, the entire weight of the car is pressed onto the cord layers on both sides of the tire, leading to excessive wear on both sides and increased fuel consumption. Abnormal wear on the inner or outer side of the tire: Wear on the inner side of the tire is often related to the front wheel toe-in of the car. Too much or too little toe-in can easily cause wear on the inner or outer side. Additionally, wheel camber has a significant impact on the wear of the inner and outer sides of the tire.