Check this bit of video from Popular Mechanics.
I swear to god, I want one of these just so I can cycle backwards through a zombie horde. I got the calf muscles, bring em on.
The bloke in the well deserved yellow jersey here, one Mr. Damon Vander Lind, spent 3 weeks and £250 geeking this little post apocalypse special together, and god bless him for doing so.
Just add a couple of hang glider parts, a fit grunge bird in goggles, 6 Beanfeasts with a trangia, an' that's ya Burning Man weekend right there.