How loose should my bike chain be?

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.

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

On a derailleurless drivetrain, you should be able to lift the chain about 1/2 inch above its resting position at the middle of the chain above the gears. If the chain is too tight, you might feel and hear binding in the drivetrain as you pedal. If it is too loose, the chain could skip or drop, and you can see it sag.

How much play should a bike chain have?

Chain Tension

There should be approximately one half inch of movement in the chain up and down at a point half way between the front and rear sprockets. To change the tension loosen one of the axle-nuts and move the wheel forward or backward slightly and snug it up again.

Should chains be tight or loose?

The chains should be tight on the tire. And, be sure to stop if you hear them making any contact with your vehicle. If your chains are still loose, unhook the bungee and adjust the red hook straight across from the chain guide.

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Why is my bike chain slipping?

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. … Shift down into the smallest ring in the rear cassette again, and press your shifter again to see if the bike shifts properly.

Why does my chain keep falling off?

Most of the time, bike chain keeps falling off can be caused by a the chain itself or bad adjusted opn the drivetrain system, after long 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 …

What happens if bicycle chain too long?

If the bike chain is too long it will cause problems when changing gears as you shift gears and the derailleur can’t pick up the extra chain length. As a result, the chain may keep slipping off. … Your front and rear derailleur are not properly aligned. The chainring, derailleur, or the chainring are damaged.

Is my mountain bike chain too loose?

Raise the quick-release lever located in the middle of your rear wheel. Slide the wheel axle backward in the rear dropouts to increase the tension of the chain. Push the wheel axle forward in the rear dropouts to decrease the chain tension. Lower the quick-release lever after adjusting your chain tension.

How tight should a mountain bike chain be?

How tight should a mountain bike chain be? It should be tight enough that it can move around half an inch upward and downward. But sometimes your chain still slacks, even if you already tightened it.

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Why is my bike chain tight and loose?

Re: tight then loose Chain

Could be: bent crank, over stretched chain, misaligned chain, off center chainwheel, tweaked rear hub, bad freewheel. Most likely is an off center chainwheel: Remove the chain and check how far the chainwheel moves front to back, like you are truing a wheel with a hop in it.