• Are you sure the tope tube is only 52cm? It looks either the same or longer length than the seat tube to me.

    Also can you do a "effective horizontal TT" measurement?

    Thanks.

    I've just double checked and sure is 52cm top tube with an effective top tube @ about 51cm, I guess this is in order to compensate for the longer drop and tri bar stretch, this frame was built into a bike used with tri bars - infact it did a 55 minute 25 back in 1997!

    The frame wasn't originally mine but belonged to a rider who was 5'10" with just short of 32" inseam if that helps with regard to sizing....it also ran with a 13cm stem.

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