Popular Science calls Ben Gulak’s Uno the zero-emissions one-wheeled motorcycle. In fact, it has two wheels:
To give the ride more stability, he put the wheels side-by-side just an inch apart and directly under the rider, who accelerates by leaning forward, as he would on a Segway. When the rider leans into a turn, the inside wheel lifts and the outside wheel lowers, so both stay firmly on the ground.Gulak put off college for a year (now 19, he enrolls at MIT this fall) and began building the Uno at a motorcycle shop outside Toronto. He modified the frame from a Yamaha R1, which is wider than most motorcycles, so it can house the side-by-side wheels. But he quickly realized that he was out of his depth in the electronics department: He would ride the Uno for a few seconds, and the circuitry would catch fire. So he contacted Trevor Blackwell, a robotics engineer who specializes in self-balancing software. With Blackwell’s help, Gulak equipped the Uno with a gyroscope and a control system that both keeps the rider balanced over the tires and manages the suspension.
TheUno’s two wheelchair motors should, theoretically, give it a top speed of 40 mph, but for safety’s sake, Gulak hasn’t taken it above 15 mph yet.
I have to think this thing would get you killed even faster than most sport bikes.