Bicycle Mechanics - Creaking and groaning

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Ayrton
03-28-07, 09:51 AM
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.

lebowitz
03-28-07, 10:16 AM
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.
supcom
03-28-07, 10:52 AM
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?