twisted minis
+1y
What? Where did you hear this? This is not true at all. Caster is the incline of the spindle, yes, but it has nothing to do with tire wear. What it does is set a trail for the front spindle to follow, much like a shopping cart. This incline makes the wheels want to re-center themselves after a turn. There is a good happy medium for a street driven vehicle, which is about 3-5 degrees. You can increase it even more, and it will create a more stable straight lien feeling, but there is a point where it starts to fight you during a turn. Have you ever notice how when you turn your wheels one way one side will camber in, and the other cambers out? That has to do with caster. Its not a noticeable amount of camber, but its there, and its there for a reason.