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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 04-25-07, 12:12 PM   #1
fudgetracks
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Noise coming from drivetrain.

This is in regards to my 06' Bianchi Pista.
The noise started maybe about a week ago and I think I've finally figured out where its coming from. It seems to be coming from the cranks/BB. It only happens when the cranks are in a horizontal position and only when I apply a lot of pressure to the non-drive side crank. I really noticed it when I was doing a track stand and I got a little wobbly, so when I began to correct myself I immediately heard a metallic sounding click any time I would apply pressure to that crank only.
What could be the cause of this? Something loose? bad BB?

Thanks in advance
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Old 04-25-07, 01:10 PM   #2
Sheldon Brown
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See: http://sheldonbrown.com/creaks

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Old 04-25-07, 05:27 PM   #3
jonnysays420
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I fear, your guess is probably right. This is the one and only thing that has been a constant issue through the years for me, no matter what bike. It sounds like it could use some new bearings maybe.
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