Originally Posted by
mastershake916
20" on a road bike frame is pretty much impossible without some frame modifications. As in, you can't get cranks short enough to be able to clear the ground.
Yeah, I once had a flat rear on a road bike, and a broken chain stay on a 20 inch rear recumbent. Got stranded at work one night when the last train home came 3 minutes early. Put the 20 on and pedal clear when going straight, but slightest lean resulted in pedal strike.
It should be harder on a fixie since you can't coast through a turn to keep from striking the ground.