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My Bicycle Chain Keeps Coming Off

Bicycle Chain Problem

Is your bicycle chain constantly coming off? This can be a frustrating problem, especially if you rely on your bike for transportation or exercise. There are several reasons why a bike chain may come off, but don't worry, most of them can be easily fixed. In this article, we will explore the common causes of a bike chain coming off and provide solutions to get you back on the road.

Chain Tension

Bicycle Chain Tension

The tension of your bike chain is crucial for it to stay on. If the chain is too loose, it will come off easily. To check the tension, lift the bike's rear wheel off the ground and spin the pedals. If the chain droops or sags, it's too loose. To tighten the chain, locate the rear derailleur and turn the barrel adjuster counterclockwise to loosen the tension. Once the chain is tight, test ride the bike to ensure it's secure.

Bent Derailleur Hanger

Bicycle Derailleur Hanger

If your chain keeps coming off even after adjusting the tension, the derailleur hanger may be bent. The derailleur hanger is a small metal piece that attaches the derailleur to the frame of the bike. A bent hanger can cause the derailleur to pull the chain in the wrong direction, resulting in it coming off. To fix this, take the bike to a professional bike shop to have the hanger straightened or replaced.

Worn Chain or Cassette

Bicycle Chain And Cassette

If your bike chain keeps coming off even after adjusting the tension and checking the derailleur hanger, it may be time to replace the chain or cassette. Over time, the chain and cassette can wear down, causing the teeth to become misshapen and the chain to slip off. To prevent this from happening, replace the chain and cassette regularly, especially if you ride frequently.

Chainring Issues

Bicycle Chainring

If your chain keeps coming off the front chainring, there may be an issue with the chainring itself. The teeth of the chainring can become worn down or bent, causing the chain to slip off. To fix this, inspect the chainring for any signs of wear or damage. If it's damaged, replace it with a new one.

Conclusion

There are several reasons why a bicycle chain may keep coming off, but most of them can be easily fixed. Check the tension of the chain, inspect the derailleur hanger, and replace the chain and cassette when necessary. If the issue persists, take your bike to a professional bike shop for further inspection. With these solutions, you'll be back on the road in no time!

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