Inseam and saddle height question (unordinary)
You know, I've been thinking about this all week now. Let's as an example say you have a 30 inch inseam. Nice round number for mathematical purposes. By these formulas that we have ( I know they are only a starting point) they have you either adding 9% to you inseam by the 109% method. This would put you at 32.7 inches of total saddle height to the pedals. The .883 method puts you at 90% to the bb + another 17cm for crank length, assuming you are using 170's. This puts you at 26.5 inches from saddle to bb + 6.69 inches for crank length. This puts you at a total height of 33.9.
Now my simple question. Where are these extra inches coming from? What I'm sayin is if your inseam is 30, how can the body extend the legs to 33 inches comfortably?