Seat tube: (center to center) 52 cm. top tube: (center to center) 53. Bottom bracket shell: ITA. O.L.D. (over lock nut distance): 120 mm.
Vintage Elm Professional Frame Steel Frame 80's Columbus SL Set Size 56 VGC
Frame set Daccordi Columbus SL speciale vintage steel frame 56 cm Campagnolo
Frame set Basso GAP Columbus SL vintage retro steel frame 57 cm Dura Ace 80s
Frame Set Chesini Precision Columbus SL 80s Vintage Steel Frame 57 cm White Retr
Frame set Gios Torino compact blue Columbus SL 80s vintage steel 58 cm frame
CONCORDE AQUILA COLUMBUS SL 57 cm Road Race Frame & Fork Classic Vintage