How do you tighten a chain on a bike?

What happens if your bike chain is too loose?

When it’s loose, the rate of power transfer drops, and you aren’t able to propel the bike forward. A bike chain can fall off completely, but oftentimes it only becomes loose. If it isn’t too loose, you can keep cycling until your destination and then tighten it.

How do you tighten a kids bike chain?

To change the tension loosen one of the axle-nuts and move the wheel forward or backward slightly and snug it up again. Then, loosen the opposite axle-nut, adjust and tighten, making sure the wheel remains centered in the frame. Re-check tension. A chain tensioner can make the process easier.

Why does the chain on my bike keep falling off?

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).

When should I tighten my bike chain?

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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Do bike chains stretch?

Do bicycle chains really stretch? The short answer is no, however they do wear in such a way as to cause their maximum length to increase. Mechanics usually refer to this as chain “stretch.” It is the sign of a worn out chain that should be replaced. Illustration of extreme wear on a chain pin.

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