Tire Abnormal Wear: Causes & Tread Impact

When a car is driving on the road, as the only object in contact with the ground, the tires can be damaged in various ways, among which abnormal wear is a common type of tire that needs to be eliminated.

Abnormal wear will greatly reduce the service life of the tire, and abnormal wear may be a signal of potential safety hazards in the vehicle, which must be taken seriously.

The main reason for the severe wear on both sides of the tread and excessive wear on both sides of the crown is insufficient tire pressure or vehicle overload. This will cause the tire crown to contact the ground with a wider ground contact area, and the middle part will slightly arch upward, which will cause the shoulders on both sides of the crown to touch the ground, forming eccentric wear on both sides of the crown.

Vehicle overload or insufficient tire pressure will also increase fuel consumption and cause the tire temperature to be too high and cause a blowout.

The main reason for the severe wear in the middle of the tread and excessive wear in the middle of the crown is that the tire pressure is higher than the standard pressure, which increases the rigidity of the tire and reduces the contact area with the ground. 

In addition, as the internal temperature of the tire increases during driving, the tire pressure tends to continue to rise, which is easy to cause the wear of the middle part of the tire crown to intensify and the bottom of the pattern to crack. Excessive tire pressure will also cause the cord layer to be overstretched, even broken and damaged.

When driving at high speed on uneven roads, it is easy to cause a blowout due to the impact of obstacles. The inner side of the coaxial tire crown is worn in an inner cone shape.

The main reasons for abnormal wear on the inner side of the crown are unqualified front wheel toe-in, too small front wheel camber, front wheel inclination, axle bending and deformation, frequent sharp turns of the vehicle, and long-term non-repositioning of the front wheel.

The outer side of the coaxial tire crown is worn in an outer cone shape. The main reasons for abnormal wear on the inner side of the crown are unqualified front wheel toe-in, too large front wheel camber, front axle deformation, and damage to the front wheel positioning relationship.

The tread pattern on both sides of the crown is worn in a serrated shape. The tread pattern is worn in a serrated shape, that is, each tread block is worn in a serrated shape, that is, each tread block is worn in a high front and low rear shape, and it looks serrated from the side.

This phenomenon is mostly related to improper front wheel toe-in when driving at high speed. If the crown is worn from the outside to the inside into a sawtooth shape, the front wheel speed is too high; if the crown is worn from the outside to the inside into a sawtooth shape, the front wheel toe is too large; if the crown is worn from the outside to the inside into a sawtooth shape, the front wheel toe value is too small. The crown wears in a wavy or disc shape. The crown wears in a wavy or disc shape.

The reasons are mostly loose wheel hub bearings, deformed spoke arches, poor tire dynamic balance, frequent use of emergency brakes, etc. So, is abnormal tire wear related to the pattern? It can be seen that there are many reasons for abnormal tire wear, such as excessive or low tire pressure, overload or frequent use of emergency brakes.

Many reasons can cause abnormal tire wear, and abnormal wear has no direct relationship with tire pattern. However, in the introduction of many tires, it can be seen that when describing the tire pattern design, tire companies all state that a more reasonable pattern arrangement can reduce abnormal tire wear, ensure uniform tire wear, and thus extend the service life.

Not only the pattern, but also the tire formula will affect the degree of tire wear. Whether it's a large tire or a small tire, there are many reasons why your vehicle wears unevenly. If there is a problem, go to a professional tire shop for repairs and don't make your own subjective judgment.