Pros saddle height
Looking at pictures of professional cyclists, their saddle height/seat post height is often ridiculous; i.e., how much of the seat post is sticking out of the frame. I do not understand it at all, and it makes no sense to me. Assuming you get the correct frame size for your height and reach, and given the fact that your saddle height is determined by the proper knee angle when you're at the 6 o'clock position, extreme seat posts positions make no sense. Can someone explain to me how you can have a foot or more of the seat tube sticking out of the frame and still maintain correct angle at the bottom of the pedal stroke? Do the pros use much smaller frames for their height to save weight, and use super longs stems to make up for the short reach?