So I have been having issues with my rear rim and the gear sprocket. I had to buy a few rear rims because the gear sprocket gets going off-center in terms of the rim hub and the actual sprocket. The bolts tend to loosen easily and eventually, this breaks the spokes to my rim and bends the rim pretty badly. Any advice for a type of shim or spacer I can get to keep the gear sprocket center to the rim hub and bolts that will keep everything intact? I was also thinking of maybe just getting a jackshaft kit instead to not deal with this anymore but I don't know. Some advice would be appreciated thank you.
EDIT: The pictures below are what I mean for clarification. I need something similar to what the nuts are doing in that picture to keep the sprocket centered but I do not quite know the trick yet.
EDIT: The pictures below are what I mean for clarification. I need something similar to what the nuts are doing in that picture to keep the sprocket centered but I do not quite know the trick yet.