Josefina Chaves-Posse's Zenith wheelchair promises to conquer stairs and make you look like an all-around bad-ass. And although the Zenith hasn't been road-tested yet, its colossal treads alone make us fear for the inevitable senior citizen revolution.

The Zenith is the brainchild of Chaves-Posse and the Mechanical Engineering Department at the University of Alberta.

[via Design Blog and Coroflot]