What are the symptoms of tire cupping on a car?

[VanCarter]

The symptoms of tire cupping on a car are irregular patchy wear on the tire surface. The causes include: incorrect toe adjustment, directional deviation, and vehicle instability at high speeds. Tire dynamic imbalance is often accompanied by body vibrations at certain speeds, rapid steering while stationary, emergency braking, etc., which accelerate front tire wear. Solutions for tire cupping: 1. For incorrect toe adjustment and misaligned wheel camber, the length of the steering tie rod can be adjusted to restore proper alignment; 2. For tire dynamic imbalance, suspension angles should be adjusted on a four-wheel alignment machine, and tire dynamic balance should be performed to resolve the issue. Methods to prevent tire cupping: 1. Adjust tire pressure; 2. Regularly perform wheel dynamic balancing.