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Disk brake sticks to one side

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Disk brake sticks to one side

Old 05-18-14, 10:00 PM
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Disk brake sticks to one side

As illustrated here:

bike 2 - Imgur

Its sticking to one side... when the wheel moves it barely even moves.
Please help! thanks.
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Old 05-18-14, 10:09 PM
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There are a number of tutorials on adjusting disc brakes. It's an easy straightforward, step by step process.

However before repositioning the brake, see if the wheel is installed fully and straight. If the wheel was returned to the same position as where it was before the brake wouldn't need adjusting.
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Old 05-19-14, 02:09 AM
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But that's a mechanical brake, not a hydraulic one, right?
Mech brakes only pinch from one side, relying on the rotor to flex over a tiny bit until the other pad makes contact. They're MEANT ro run REAL close on one side.
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Old 05-19-14, 03:20 AM
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If the outside face of the rotor is intermittently rubbing on the brake caliper, the rotor will need truing.

Rotor Truing: https://www.youtube.com/watch?v=0fosSuyiCDE

If the outside face of the rotor is continually rubbing on the brake caliper it will need realigning.

* Adjust the inner pad so that the rotor is centered in the brake caliper when the brake lever is squeezed.
* When that's done squeeze the brake lever and wrap a rubber band around it to keep it squeezed.
* Loosen the two bolts that attach the brake caliper, you only need them loose enough so it can move.
* When the bolts are loosened the brake caliper should move it's position.
* After the brake caliper has moved it's position the bolts can be re-tightened, when re-tightening swap between the bolts and tighten small amounts at a time.
* Take the rubber band off the brake lever.
* Adjust the inner pad so it moves away from the rotor enough that it doesn't rub.
* The brake cable might need adjusting to move the outer pad closer to the rotor, the closer the pads are to the rotor the less lever pull there will be, this can be done with the barrel adjuster on the brake lever, if the brake caliper has a barrel adjuster on it you can also adjust the cable there.
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