Which Side of the Tire Wears More When Toe-in is Excessive?

[DelFinley]

Excessive toe-in causes significant wear on the outer shoulder of the tire. Reasons: Excessive toe-in leads to uneven wear on the front tires, causing them to wear out quickly. There is no fixed value for toe-in; trucks can only measure it with a tape measure, while cars require a four-wheel alignment. This condition results in feather-like wear on the outer edges of the tires, vehicle vibration at high speeds, pulling to one side, and tire scrubbing noises during turns. Function of Toe-in: The primary function of toe-in is to provide the vehicle with self-centering capability, ensuring stable straight-line driving. When the steering wheels are subjected to an external force (e.g., hitting a stone) and deviate from their path, they automatically return to the straight-line position once the force is removed. This self-centering effect is achieved through the steering wheel alignment parameters, with toe-in being one of these parameters.