What is the optimal rear toe-in adjustment in millimeters?

[Isabelle]

In general, the optimal rear toe-in adjustment is approximately 5 millimeters. Below is relevant information about toe-in: 1. Definition: Due to wheel camber, the left and right wheels often generate opposing camber thrust forces corresponding to the camber angle, which increases tire wear. To prevent this, it's necessary to eliminate this camber thrust. The solution is to install the wheels such that the center planes of the two front wheels are not parallel, with the distance between the front edges being less than that between the rear edges. The difference between these distances is referred to as front wheel toe-in. 2. Function: Front wheel toe-in not only eliminates camber thrust to ensure normal tire wear but also ensures that the steering can automatically return to center after turning. Incorrect toe-in can result in the steering wheel failing to return to center automatically, causing the vehicle to feel unstable at high speeds. Additionally, it can lead to abnormal tire wear, with excessive wear on either the outer or inner edges.