Originally Posted by vobopl

The most detailed internet sizing page puts me on 57-58 cm bike and suggests setback seatpost and 120mm stem. I am riding 57cm road bike with 90mm MTB stem and I am very comfortable on it. I am equally comfortable on my 50.5cm fix (with 53cm top tube) which after my mod has virtual 53.5cm size - the saddle to bars drop is way bigger on the later. One can fit samller frame with appropriate seatpost and stem, but efficiency and handling will be affected.