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My Front Brake Won't Release

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My Front Brake Won't Release

Old 07-09-13, 10:42 AM
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My Front Brake Won't Release

It is an Ultegra brake . I have not ridden the bike in a couple of months. I sprayed the brake with silicone. That didn't help. I can release it easily with my hand. I think it might be a problem with the brake cable.When I release the lever, the inner cable does not seem to retract. I don't know how to lubricate the brake cable.
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Old 07-09-13, 11:41 AM
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If you squeeze the sides of the caliper together then release does it spring back? If so, it is a cable issue. Just replace the cable (and housing if it is bad) and be done with it.
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Old 07-09-13, 12:11 PM
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Originally Posted by Equinox View Post
I don't know how to lubricate the brake cable.
Replace both, here's how to w/ proper lubrication courtesy of Sheldon Brown:


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Old 07-09-13, 09:44 PM
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Detach the brake cable from the caliper to see which is having the friction issues. Replace or lube the culprit. Andy.
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Old 07-09-13, 10:09 PM
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If you're willing to pull the cable off or apart go ahead and do so since it can't hurt, but here's a shortcut that may save the effort.

1- check to see if the binding is in the caliper or cable by squeezing the brake closed (the brake itself, not the lever) and let go. If it works OK this way, then you know the brake is fine, and the friction is in the cable or lever.

2- you can oil the cable, by either opening the brake QR, or removing the wheel. Then squeeze the caliber to create slack in the cable. Check for friction by sliding the housing back and forth on the slack wire. You can also dribble some light oil in at the end, and slide the housing back and forth to work the oil in.

3- the problem can be in the lever, so add a drop of oil on the lever's pivot (both sides).

If this doesn't work, do the job right and fieldstrip the cable and replace it.
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