I've got a powercam bike in the shop for some work, let outside awhile, and it's got some stuck stuff. Anyway, the question is whether the part that rides on the cam is actually the roller it appears to be, or if it's not supposed to turn. I'm thinking it's a roller to follow the cam, but I'd like to know for sure before I spend a bunch of time getting it freed up.
Steve Birmingham
Lowell, Massachusetts
USA