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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 03-28-07, 09:51 AM   #1
Ayrton
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Creaking and groaning

My bicycle has just several hundred miles on the clock but the bottom bracket is now creaking and groaning whenever I put any sort of load on the pedals. As its a sealed unit - any tips to rid myself of this constant irritating noise.
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Old 03-28-07, 10:16 AM   #2
lebowitz
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If it's a new bike it should have a sealed cartridge bearing, which you don't service, you replace

Check to see if there's any wobble of the cranks back and forth (play in the bearing) also is there any grinding or un-smoothness when you turn the cranks?

The shop you bought it from should replace it if the bearing has failed after several hundred miles. They normally last a long time.
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Old 03-28-07, 10:52 AM   #3
supcom
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Quote:
Originally Posted by Ayrton
My bicycle has just several hundred miles on the clock but the bottom bracket is now creaking and groaning whenever I put any sort of load on the pedals. As its a sealed unit - any tips to rid myself of this constant irritating noise.
Take it back to the bike shop for warranty repair?

BTW, how do you know that it's the BB and not the crank arms, pedals, or even the saddle making the noise?
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