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Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

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Old 10-18-07, 06:30 PM   #1
jaxgtr
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Noise from the BB area

OK, this is driving me insane. On my Trek 7300, I have a lot of racket in what I think is the BB area. It happens on each turn of the right pedal when it reaches the most forward position. I pulled the BB and repacked it with fresh grease, BB is in good shape. Now is where the weird part comes in. The noise only happens when I am leaning forward on my handle bars. If I sit straight up, I no longer have the noise.

I checked for loose handle bars, bb, pedals, crank arms, chain, chain hitting the FD and for anything being loose, cracked or damaged and I can find nothing. This noise is driving me nuts.

Any ideas?
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Old 10-18-07, 06:36 PM   #2
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saddle, post?
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Old 10-18-07, 11:05 PM   #3
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saddle, post?
Nope, saddle seem good and post as well. Is it possible I might be leaning to much on the bars and it could be causing too much stress on the front of the frame?
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Old 10-19-07, 12:38 AM   #4
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you did regrease the inside of the bb shell too right? or is that what you ment in the first place
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Old 10-19-07, 07:58 AM   #5
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Have you greased your stem and the interface between clamp and bar, tightening both? Is your headset loose?
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Old 10-19-07, 08:29 AM   #6
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You many find the following links helpful in tracking it down:

http://sheldonbrown.com/creaks.html

AND

http://www.parktool.com/repair/readhowto.asp?id=123

It's usually just a matter of patiently removing, cleaning,
re-lubricating, and re-torquing fasteners until it quiets down.
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Old 10-19-07, 04:58 PM   #7
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I check all that and made sure everything was lube, but it might just be time to let another set of eyes take a look. Like having a final checker for my bike. Thanks.
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Old 10-19-07, 06:56 PM   #8
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I'm not sure but if you change the rear wheel I will bet your noise go's away. I think your rear hub needs service. I had the same problem, screwed around with the bottom bracket forever with no result. Try it!
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Old 10-19-07, 08:38 PM   #9
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New wheels, they are silent.
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