hi there,
i've read some of the archives about BB creak, and done some troubleshooting, but here is my problem. My BB/crankset only creaks when the RPMs are low. IOW, mainly when i'm grinding up a hill, or going from a stop to a start. Once i'm up and running it's fine. Sprinted with it yesterday: no noise. Did hard group ride: no noise. But starting after a stop sign, there it was.
I just put the crankset/BB together a few weeks ago, and i knew the BB was slightly used (say 1000miles). I didn't have a torque wrench but i tightened it enough so that there was no wobble/play (still isn't any play) and it rode fine. It was fine until my race last weekend, and now it's makes this creak/grinding noise. I would describe it as a click with a slight grinding sound which happens in rhythm with my downstroke on the non-drive side.
I thorougly applied grease to both cups and all areas of the BB/crankset. I altered my limit screws on the front derauilleur thinking maybe that when i'm in low rpm im usually struggling up a hill in my lowest gear and maybe the chain was rubbing. that didn't help.
Is the BB failing? is it typical to only hear the creak in low rpm circumstances? can it possibly be over-tight?
any help appreciated.
Mike
i've read some of the archives about BB creak, and done some troubleshooting, but here is my problem. My BB/crankset only creaks when the RPMs are low. IOW, mainly when i'm grinding up a hill, or going from a stop to a start. Once i'm up and running it's fine. Sprinted with it yesterday: no noise. Did hard group ride: no noise. But starting after a stop sign, there it was.
I just put the crankset/BB together a few weeks ago, and i knew the BB was slightly used (say 1000miles). I didn't have a torque wrench but i tightened it enough so that there was no wobble/play (still isn't any play) and it rode fine. It was fine until my race last weekend, and now it's makes this creak/grinding noise. I would describe it as a click with a slight grinding sound which happens in rhythm with my downstroke on the non-drive side.
I thorougly applied grease to both cups and all areas of the BB/crankset. I altered my limit screws on the front derauilleur thinking maybe that when i'm in low rpm im usually struggling up a hill in my lowest gear and maybe the chain was rubbing. that didn't help.
Is the BB failing? is it typical to only hear the creak in low rpm circumstances? can it possibly be over-tight?
any help appreciated.
Mike