Mountain Bike Chain Jumping Off. Learn the following facts about skipping bike chain and how to fix it: Often, a skipping bike chain is due to a cable stretch. Abby Hippley, mechanic, bike builder and former demo driver for Santa Cruz Bikes says, "Your chain—more accurately the cables that connect your shifters to your derailleurs to move the chain.
The parts of a bike which make up the most weight are the rear wheel, the front wheel, the fork and the frame. One of the most important things to maintain on a mountain bike, or any bike, is the drivetrain. A chain that keeps falling off is either too loose (in the case of a hub-gear or fixed-gear bike), or the derailleurs are badly adjusted and move the chain right off the cogs when you change gears.
To fix a slipped bike chain, first, turn your bike upside down, as this will make it a lot easier to reattach the chain.
I replaced the chain, and when out riding I started to get terrible chain slip (not slipping up and down the gears) but riding over, i think the cassette.
If the chain is coming off the inside of the cassette, put the chain onto the smaller chainring (at the front) and the largest sprocket (at the rear). It's so easy to fix a Broken bicycle chain. Abby Hippley, mechanic, bike builder and former demo driver for Santa Cruz Bikes says, "Your chain—more accurately the cables that connect your shifters to your derailleurs to move the chain.