Originally Posted by
non-fixie
It's an Italian bike, so 58 would indicate the center-to-center seat tube length in centimeters. Which seems to be correct.
My Alan Competizione says 59x58. It measures ~61cm center-to-top:
Interestingly, my Viner road racers do not have a size indication on the BB shell:

Thanks, That makes sense this is my only Italian frame and only track frame.
So would this frame be technically labeled a 58 cm?