Joined: Apr 2003
Posts: 1,469
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From: Perlas ng Silanganan
Bikes: Custom Knolly Chilcotin Limited Edition Orange, Dartmoor Wish, KHS 7500, Custom built Specialized Camber, S-Works Road, Cannondale Trail mtb, Polini MTB
this sounds like a bottom bracket issue.
What bbs are on your bike?