Its fine in the workstand, but as soon as I put any power through the cranks there a horrible dullish squeak coming from somewhere on the bike. Seems to be directly related to the downstroke on the crank, but the BB appears fine, and it appears to be coming from somewhere in the proximity of the rear triangle.
Could it be the bearings are shot (in either hub or bb), even though both turn freely in the workstand?
Worst case scenario I'm guessing it may be a crack in the carbon, but can't see anything on inspection
Either way its already ruined my afternoon ride...