I need help before I go crazy. I have a Cube road bike about 3 years old which has developed an odd metallic clicking, ticking sort of noise when I pedal. There isn't a predictable rhythm to the noise and it's difficult to predict where it appears on the pedal stroke. The noise disappears when I freewheel or when I pedal at a low cadence.
So far I've changed the pedals, changed my cleats, had the bike serviced and as a result had a new bottom bracket. I've removed the handlebars and stem gave them a clean and refitted them. I've checked the wheels and there don't appear to be any problems that I can see and just to be thorough I removed and re-fitted the tyres and tubes.
Despite all of this the damn clicking ticking noise remains. Does anyone have any ideas as to what else I could do to sort this out?