Originally Posted by
WNCGoater
Anyone else notice their road bike's rear tire wearing flat in the center while their front tire maintains a nice round radius? Time to rotate?
It happens because you only apply drive force to the rear tire, and that when the bike is mostly upright, so the rubber in the center scuffs against the ground. Plus, a lot of people preferentially use their rear brake, skidding it when coming to a fast stop.
In contrast, the front tire almost never scuffs the ground.