The last aspect of bike fit to consider is the pedal system. Having the proper pedal fit can help eliminate foot and knee pain, as well as help you increase the amount of power you're able to get out of the bike.

Modern clipless pedals are a significant innovation compared to the clips,straps, and slotted cleats of just a few years ago. With clipless pedals, there's no pressure across the instep caused by toe straps; there are no toe clips digging into the end of your toes.Clipless pedals are easy to enter and exit. In a crash, your feet automatically disengage so you aren't attached to the bike as you fall.

The less float your cleats have, the more power you can produce. With more float, your leg muscles have to work harder to stabilize your foot as it rotates on the pedal. Therefore, it's best to choose pedals with the least amount of float you need.

Anyhow it go's on and on. It also says with platform pedals you do lost contact for a split second on every revolution.