My new Cervelo is a 51cm, the older Trek 5200 (1992 original version OCLV) is a Trek so-called 54cm which is more like a typical 52. To be honest, I much prefer the fit of my smaller 51cm, with sloping top tube.
I like to ride my neuvo retro '89 Serotta Nova Special. 56 cm of classic columbus sl goodness updated with full downtube shiftin 9 spd dura ace. Snow causing me to put the miles in on my Puegeuot/Campy Athena/one-up trainer in front of the main system but once the snow melts the serotta will take it's rightful place.
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