I've got one of those annoying "I've got a clicking noise, any ideas?" questions, and I know how difficult they are to answer reliably, and I suspect I know the answer, but I thought I'd ask anyway in case anyone has any other ideas.
The last couple of days there has been a clicking noise when pedalling. It happens when I put the power down; it doesn't happen when pedalling gently. It happens at the exact same point when the cranks are rotating, which is when the crank is almost (but not quite) at the bottom. It happens _on both sides_ in the same place, therefore clicking when my right foot is nearing the bottom *and* when my left foot is nearing the bottom.
I figure it's my BB.
I took the cranks and BB off, gave the threads a nice clean, greased them up and put it all back together. Hasn't made any difference at all.
I therefore figure the BB is done. Which is a shame, as it has only lasted about 3 months, therefore not much more than 1000 miles. It's a Shimano Tiagra.
I've ordered another one at great expense (£7.99) from Wiggle to see if that makes it go away. If it doesn't, however, I'm stumped.
If anyone has clues as to what else it could be, do shout, but I figure that due to the facts above and how to make it re-occur, I'm in the right ballpark. But maybe I've identified the wrong part, of course!