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How to Get Mountain Bike Disc Brakes to Stop Squeaking

by
author image Darla Ferrara
Writing since 1999, Darla Ferrara is an award-winning author who specializes in health, diet, fitness and computer technology. She has been published in "Mezzo Magazine" and Diet Spotlight, as well as various online magazines. Ferrara studied biology and emergency medical technology at the University of Nebraska and Southeast Community College.
How to Get Mountain Bike Disc Brakes to Stop Squeaking
Make sure you are safe on your bike. Photo Credit Domus/Photodisc/Getty Images

Disc brakes work differently than traditional systems you find on some multi-speed bicycles. They have a rotor, or metal disc, that turns with the wheel. Brake pads press against the rotor, as opposed to the rim of the wheel. A disc brake system on a mountain bike would be similar to one on any style of bicycle. However, they often are found on mountain bikes. When a disc brake squeaks, that generally means the rotor is dirty.

Step 1

How to Get Mountain Bike Disc Brakes to Stop Squeaking
Squeaking isn't a good sign. Photo Credit Dave & Les Jacobs/Blend Images/Getty Images

Pour a small amount of rubbing alcohol on a clean towel.

Step 2

Flip the bike over so it rests on the handlebars and seat. This will give you access to the rotor. Look for a metal disc sitting in the middle of one wheel, probably the rear one.

Step 3

Fold the towel over the rotor at the center of the alcohol spot. The goal is to have one-half of the wet area resting on the inside of the rotor and one-half on the outside.

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Step 4

Turn the wheel with your free hand. As the wheel rotates, so will the rotor. Keep the towel in place for approximately 30 seconds.

Step 5

Wet the towel again with the rubbing alcohol on a clean area. The first spot will have dirt and grease on it. Repeat the process several times, re-wetting the towel each time .

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References

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