Mountain Bike Chain Falls Off. In either case, it may either hang loose or jam in place. There's nothing more frustrating than a mountain bike chain that keeps coming off!
When the chain falls off closer to your wheel, then tighten the L screw. On a bike with a front derailleur, the front derailleur prevents the chain from falling off. You have a multispeed bike with no front derailleur.
In this article, I will try to discuss how to fix a bicycle chain that has fallen off and I hope it will help you a lot and gives your possible solution.
There's nothing more frustrating than a mountain bike chain that keeps coming off!
Chain falls off A chain may come off to the inside or to the outside at the rear wheel; at the crankset, it may fall to the outside onto the bicycle's bottom-bracket shell, or to the outside, between the right crank and outer chainwheel. The first thing to do is to try and re-tighten the crank arm on to the bottom bracket axle. The only time I've ever noticed the chain not going backwards properly was when I was using dry lube on the hybrid last summer.