Cheers. I think it's a 52S, which is a 56 in horizontal. Sadly, that would make it marginally too big for me.
If it's a 52s size, it has an effective 54,7cm top tube (from Colnago geometry chart)
you can measure head tube length to be 100% sure about size
@Carlo_Alberto started
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If it's a 52s size, it has an effective 54,7cm top tube (from Colnago geometry chart)
you can measure head tube length to be 100% sure about size