quick question- are there differences in the diameter of pedal axles between different types of bikes? I just tried to install my new LOOK Keo Sprints on my old gt mtb and the pedal axle seemed too big for the stock cranks. i don't have callipers but the seem to be about the same diameter as my existing (non-stock) pedals... The instructions say that the cranks should be "bsa (9/16x20) type". both pedals seem about 9/16" according to the tape measure but i realize a small difference would make a difference. the old/current pedals thread on readily.
any suggestions? i dont think i messed up my pedals (perhaps just scraped the paint off of the first thread) but that would be a bummer.