ticwanos, Fit is more than just about the frame size as there are many alterations that can be made for tailoring one's fit. I, and I suspect most riders can have a maximum working range of 3-4 cm in seat tube length, but less so in top tube length. I ride 56-58 cm sized frames and wouldn't consider a 52 cm bike. I've ridden my daughter's and sister's 50-52 cm frames after tune ups for system checks and that's as far asI'll go on them.

Brad