I am pretty astounded by what you wrote 53-11. I frankly expected you to be a bit more on board...well...maybe not especially the part about how set-back is not taken into account with Lemond's formula. 53...it is an acute right triangle. Set-back from the BB is the horizontal leg, vertical height from BB to top of saddle is the vertical leg and Greg Lemond's formula i.e. .883 X inseam is the hypotenuse which takes into account set back....it is a function of set-back. Will say it again...the Lemond formula is a function of set back for distance from top of saddle where you measure to the BB. Of course where Patriot sits on his seat affects distance to the BB...it is part of the Lemond formula. If Patriot sits on the far rear of the seat, you measure to where his sit bones contact…which includes how much set-back he is using. As to crank length affecting the formula...not much. If you don't like Lemond's formula, then use Harnley's formua of 1.09 X inseam which takes into account crank length. You end up with virtually the same result give or take a few millimeters...that is...a seat height higher than most cyclists ride except elite racers....1.05 is a more typical norm.

You heard it here first. 53-11 thinks that the TDF champion Greg Lemond’s formula is bunk.
George