Originally Posted by chris hansen
The interesting thing is that 31 inches would be way too low. I had mine set at 37 inches and raised it up even higher because it felt low. No matter how I measure and re-measure my inseam always looks about 35 inches. It doesn't make sense.
Measure your leg from the floor to the pubic bone. Your "seat height" is measured from the center of the bolt that attaches the crank to the bottom bracket up to the top of the saddle. (Not the middle of the saddle..."top" is the "seam" between the side panel of the saddle and the top panel of the saddle).
For a leg length of 35 inches, the "seat height" is about 30 inches. Also, when the crank exactly "in line" with the seat tube, the distance from the top of the pedal bolt (from where it meets th the crank) to the top of the saddle will be about 36 inches (depending on the length of the crank).