Originally Posted by
Dunbar
My pant inseam is 30", the pbh is 31.5-32" using the book against the wall method. My seat was actually 31.5" from the center of the BB. Believe it or not I didn't have to rock my hips. I dropped the seat down to 29" and took this picture. Does the angle at full extension look right?
You'd have to account for seatpost suspension sag when measuring the BB to seat top dimension, so it gets tricky there.
I'd say your optimal size frame would be around 54cm, but that's just about exactly between this size and the next one up. There is a chance the next one up would be right for you, I know I fit some 56cm frames well, but my inseam is 32.5.
I like the riser bar idea at this point.
This one's almost 2" rise and only $30. Do a lot of stretching and about 200 twisting crunches a day and a 1" bar drop will seem like nothing before long.
EDIT: Unless you JUST bought this bike, then I'd try to trade it in for something bigger.