Originally Posted by
bigbossman
According to the Campy documentation, the modern 115mm bb's are for triple cranks and bikes with oversized (32mm) seat tubes. 111mm bb's are for triples and 28.6mm seat tubes.
i put a triple on a steel bike (28.6) for my girlfriend and we used every bit of the 115mm bb. the frame does have a lot of tire clearance, but i would follow that guideline with caution.