Originally Posted by
Wallonthefloor
As long as your heel (in a shoe that has no heel) is on the pedal at the 6 oclock position and your leg is straight you are at the right seat height. My feet are big enough that I can touch the ground on the saddle.
Fixed to include a proviso that has been lost in the mists of time. That sizing method was current in the days when bike racers wore shoes with thin leather soles that lacked heels. Thus, many people who apply that method while wearing thicker-heeled shoes are likely riding around with saddles that are set too high. If you look at some videos of racers in action, you'll see that the bend in their knees at the bottom of the pedal stroke is considerably greater than is the case with many casual and sport riders.