Readers ask: Why Does My Bicycle Chain Keep Falling Off?

What causes bike chain to fall off?

Most of the time, a skipping chain is caused by cable stretch. In the first half dozen rides on a new bike your shift cables stretch the most. They can also stretch over time as you ride. Hippley explains, “It takes cable tension to open a derailleur, which shifts your chain between gears.

Why does my chain keep coming off my mountain bike?

If your chain is coming off at the rear, it’s often a simple matter of adjusting the limit screws on your rear derailleur. 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).

Why does my chain keep coming off my cruiser bike?

Your rear wheel is positioned too close to the chainring. If this is the case, your chain will not remain tight and thus slip off. There could be dirt or grime in your chain that will cause it to slip or fail. Dirt can disrupt the normal functioning of the chain.

How do I know if my bike chain is too loose?

Check your chain out. It should be tight enough that it only allows you to move it up and down about one inch. If it is sagging or much looser than that, you need to tighten that chain up. Chains often loosen when a bike does not have a derailleur.

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When I pedal my bike it makes a clicking noise?

Noise: Clicking, Creaking. A bent derailleur hanger, or one that is out of alignment, can cause a constant clicking sound while pedaling. The derailleur hanger might be visibly bent or off if it’s bad enough. Sometimes a creaking noise can occur from the derailleur hanger rubbing against the frame where it’s mounted.

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