My Ridley Damocles has been making a rhythmic clicking or pinging sound for a few weeks. I've swapped out parts in an attempt to isolate the problem. Due to the swapping, I can safely say that it does not involve the wheels (hubs), freewheel or pedals.

The sound is VERY intermittent--I can ride for maybe two hours and the clicking will only be there about 15 minutes.

I dropped it by Imbert's place here on the upper west side and he seemed to think it odd that the bottom bracket would do that on a bike scarcely a year old (maybe 6000 miles). I hope he can figure this out.

Anyone care to speculate on this? FYI the drivetrain is Rival.

Thanks.