I have a bike that works fine, but sometimes when I'm riding it, the chain comes off. I can put it back on, but the same thing keeps happening over and over again. What can I do to stop the chain from coming off?
loosen each nut on the outside of the rear wheel, maybe 3/4 to one full turn, slide the rear tire backwards to put more distance between the tire and front sprocket thus tightening the chain.
re tighten the bolts