Originally Posted by
alexw
I'm struggling with this issue myself. I'm 6'4", with a riding inseam of 35" or so (short of short legs for my height). I have a 60cm frame, and a 64cm frame, and I can't get either one quite dialed in.
4 cm is actually a pretty big jump. Its more than an inch and a half which is like saying its more than a size and a half difference....you also might not be comparing apples to apples in terms of top tube length. It might be a 60cm with a 58cm top tube and a 64cm with a 64cm top tube.