He's taking "share the road" to a whole new level.
Submitter MarchNero says: Whenever I'd go biking in jeans, my pant leg would always get caught in between the gear and the chain. To fix it, I simply taped a cardboard circle to the pedal. Works like a charm.
With all this talk of the bath salts zombie apocalypse going around, I think I'm going to play it safe and get me one of these!