Why does my son’s bike chain keep falling off?
If your chain has started to come off frequently when it didn’t in the past, something in your bike setup has changed. The first thing to do is check that all of your drivetrain bolts are tight, that nothing has moved or got whacked, and to make sure your rear wheel is correctly seated in the dropouts.
How do you tighten a loose chain?
Tools: Grab a wrench that will fit your rear axles.
- Loosen your tire. Loosen the bolts that hold your rear tire.
- Pull back the tire. Move the tire back until the chain starts to tighten.
- Find the appropriate tension.
When should I tighten my bike chain?
The chain should be tight enough that it only allows you to move it up and down about half an inch. If there is no slack in the chain then it is too tight. And if there is too much slack then you need to tighten that chain.
What causes a bicycle chain to come 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 would a bike chain keep falling off?
Most of the time, bike chain keeps falling off can be caused by a the chain itself or bad adjusted drivetrain components, after good riding mileage, the chain will get stretched causing damage to both chainrings and cassette teeth, therefore it loses its good mechanical contact causing the chain to jump from the gear …