I've got a Pinarello FP2/Ultegra bike. It came with a MOst compact crank-set, which I know is a decent unit. But since everything else in the drive train is Ultegra, I'd like to replace the existing crank-set with the Utlegra compact. Yeah, I know....

Anyway, would this be a simple BB/crank-set swap out or are there any compatibility issues?

Thanx,
Bert