When the RoChair first appeared back in 2011, the wheelchair used an unorthodox center-mounted drive lever, operated with a rowing motion, to propel it forwards. Four years later the RoChair has been completely redesigned to look more traditional, until you see someone operating it.
It's not the most orthodox approach to getting around in a wheelchair. And you're sure to get some odd looks as you row yourself down the sidewalk, minus a set of paddles. But this chair's innovative propulsion system does more than just miminize arm and joint pain.