Originally Posted by
Andy Somnifac
If you allow the pedal to bully you around the stroke, sure. But if you stay on top of your pedal stroke, it will help you smooth your stroke out, and help increase foot speed over time.
I agree. Fixed gear riding gives you direct feedback on how smooth you are pedaling. Some riders with the fastest cadences in the world are track riders. Purvis has a video on YouTube where they clock his cadence at something above 220 rpm.