I got a problem and a couple of questions hope this is rite section on forum ? First the problem ok coaster brakes lost its marbles today while doing 25 mph chain came off both the pedal and off motor side . Now locked up wheel ok got it home. Tore into it and everything fell out in a mess so took my mountain bike wheel off my other bike changed out sporocket . Put it on ok good no problem go and put it on back of bike. It barely fits ok so i now thighten the bolts down and roll bike and see the bolts that hold bearings in place moving in and tightning wheel and stops rolling question 1 Why is this doing what its doing ? question 2 How i stop that from doing that so it will roll freely ? and question 3 do they sell coaster brake rebuid kits with bearings clutches and all of it axle to and where get?