I would ignore Bikesdirect sizing guidelines, as they appear to be based primarily on stand over height, which is the wrong metric for judging how a bike will fit. I have bought a few Bikesdirect bikes over the years and always found their sizing guideline to be inappropriate for me. I am 6’1” with fairly normal body proportions.

If you are willing to do your homework on geometry and come up with accurate stack and reach calculations of what you own and what you are considering buying, you are much more likely to get the appropriate size frame than if you go by Bikesdirect guidelines.


You can make frame geometry comparisons here.....http://www.bikegeo.net