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Bottom Bracket woes..

Old 08-22-05, 08:30 AM
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Bottom Bracket woes..

Here's the situation:

New bike, 250 miles on it. (Giant OCR)

Out for a ride on Saturday, stood up on a climb, and the chain "slipped" hard, 1/4 of a rotation.
Remainder of the ride, when shifting to a smaller cog, the chain would hesitate (a few revolutions) before changing.

Towards end of ride, there was a noticeable "skip" when pedalling smooth circles, and the chain would occasionally skip as well.

When I finally stopped, the cranks/bottom bracket were very noticeably loose.

LBS took a look at it, removed BB, thought it looked ok, put it back and tightened everything up.

On Sunday, I went out for a ride, and within a mile, it was skipping again while pedalling smooth circles and making very loud, unnatural noises when I stood up on a hill...in fact, any serious amount of pedal pressure and it was making loud "clunks" on the downstrokes.

I'm about to bring it back to the LBS. Should I be expecting them to replace the BB? Repair it?

Any thoughts greatly appreciated.
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Old 08-22-05, 08:37 AM
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sydney
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English threaded BB don't self loosen if installed correctly.There may be a bigger issue somewhere. LBS should fix or otherwise make it right.
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Old 08-22-05, 09:09 AM
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If I were you, I would take it back to the shop and just discuss it with them. I am assuming you are taking the bike to the shop you bought it from. If that's the case, they ought to inspect it more thoroughly and probably replace it (sounds like a bad BB to me). A BB should NOT give out after 250 miles unless its defective
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Old 08-22-05, 09:26 AM
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I am bringing it back to the shop I bought it from. I've no complaints with them at all, at this point.

I was just curious what a "reasonable" response from them would be at this point...either to make another attempt at fixing the current one, or replacing it completely, etc.

Thanks for the responses.
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