Originally Posted by Patriot
This is one that kind of rubs me the wrong way. i have tried a few online calculators, and they are very close to giving me the geometry that seems most comfortable for me. However, one measurement still makes me scratch my head. And that is the BB center to top of saddle measurement.
This is where the online calculators are worthless. Besides the crank length modifies the ideal saddle height/position anyway.
What is probably more important is distance from BB center because that takes into account not only height (verical distance), but set-back (horizontal distance from BB)