Originally Posted by
Lemond1985
Why a taller person needs to have the top tube right under their crotch when the reach is already fine ... I will never know. I prefer the smaller frame sizes anyway, most 58 cm and larger steel frames flex like crazy for me, why anyone taller than me would want that, if they could use a smaller stiffer frame size ... also a mystery.
Mostly because seat post lengths tend to top out at 250-300mm. I'm already at the maximum safe length for my 64cm frame's seat post. And I can ride taller bikes than that.
But most taller frames often use stiffer tubing (less butting or oversized) to compensate for the flex.
As for OP, practice and looking at head tubes.
57cm Koga-Miyata WorldTraveller
66cm Koga-Miyata WorldTraveller