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Bio: This chunky 1100-pound machine is Jake Lyall's RIOT (Re-Invention Of
The) wheel. Lyall's monowheel is unusual because it does not use the
rider's weight to provide the reaction to the engine's thrust on the
wheel. Instead the rider is outside, and the reaction is given by a
lead-weighted Honda 80cc 4-stroke scooter engine suspended from a
central shaft, driving through a sprocket attached to the wheel spokes. A
separate 450-pound counterweight keeps the rider hovering above the
ground at the front. Steering is done partly by precessing a 65-pound
gyroscope to give yaw, and partly by the rider shifting his weight.