What Causes Uneven Wear on the Outer Side of Both Front Wheels Without Causing Pulling?

[AshlynAnn]

The reasons for uneven wear on the outer side of both front wheels may include incorrect toe-in values, incorrect camber angles, or chassis deformation in non-adjustable suspension systems. Below are the relevant explanations: 1. Incorrect toe-in or camber angles can be resolved by performing a wheel alignment. For chassis deformation, it is best to have it inspected and repaired by professionals. If only the outer sides of both front wheels are wearing unevenly without causing pulling, it is likely due to excessive camber angle or chassis deformation. 2. Front wheel toe-in refers to the difference in distance between the front and rear edges of the front wheels in the lateral direction of the car. Its main purpose is to compensate for the adverse effects of wheel side slip caused by steering and the influence of tangential road reaction forces on the front wheels. If the toe-in value is too large, it can cause severe wear on the outer side of the tire tread, presenting a sawtooth-like wear pattern from the outer to the inner side of the tread, and may also cause the vehicle to pull during driving.