Jake Lyall’s Re-Invention Of The Wheel, or RIOT Wheel, is, as a monowheel, in something of a different class to the other motorcycles featured here. Still, it’s such an amazing DIY, post-apocalyptic-style creation that we just had to include it. Strange-looking in any case, this bulky 1,100-pound monster looks like it must have been made using at least some salvaged parts (although Lyall did have to spend some $5,000 in its making). The RIOT Wheel is, of course, unusual because the rider sits outside and in front of the single wheel, so his or her weight doesn’t provide a reaction to the engine’s thrust. Instead, a lead-weighted Honda 80cc four-stroke scooter engine suspended from the central shaft manages the job.