Bicycle Mechanics - front brake pad draging
Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.
09-03-09, 10:07 PM
On my Trek 2.3 I noticed this evening on my ride that the right pad on the front brake would start draging after a short distance. I could tape the brake lever and the assembly would go back to correct position, but would slowly rotate to the draging position again a short distance later. By the end of the ride I couldn't get it to stop draging any more.
At what point is the adjustment to fix this? Would it just need the caliper tightened to the fork more or would it be somewhere else? I know the fork is carbon so I don't realy want to go reefing on anything that is in contact with that.
Thanks in advance.
09-03-09, 10:20 PM
Have you made sure the quick-release lever on the brake is disengaged?
Next Up: There should be 1 or two bolts on the front of the brake - the front is the side facing you as you look straight at it. The brake body itself. If there is one bolt in the center, try loosening it maybe 1/4 turn. Any held? Is there another bolt on the front (I always forget with these dual-pivot thingies)? Loosen that 1/4 turn. Any good?
It sounds to me, from what you are saying, that the brake doesn't doesn't fully let go when you release the lever on the handlebars. Is this correct? If so, one of those two bolts should loosen the action enough to allow it to snap-back when you release the lever. Once you find which bolt is helping - return the one that didn't help to where it was - 1/4 turn or however much.
Let us know if this works, please.
<EDIT> Also a drop or two of good oil on the bolts and springs of your brakes is always a good idea.
09-03-09, 10:29 PM
I'll check those things in the morning. The way it was acting it seems like rather than both arms moving away from the rim when released an equal amount all of the movement is on one side. It acts like the entire assembly is rotating to one side when the brake isn't applyed.
It sounds to me as if the adjustment nut needs to be tightened some. You'll know when it's right. Not much chance that you'd hurt the fork with this adjustment. A little horse sense is all it takes.
Also be sure that the wheel's axle is fully seated in the fork. The bike needs to be wheels down on the ground when you close the quick release. The wheel needs to be centered in the fork before adjusting the caliper.
09-05-09, 04:28 PM
Just tightened up the nut between the calipers and the fork, problem fixed. Was only about an 1/8 of a turn loose.
Powered by vBulletin® Version 4.1.12 Copyright © 2013 vBulletin Solutions, Inc. All rights reserved.