Unicycles are most commonly associated with the circus, but this Superride Self-Balancing Electric Unicycle is far from a side-show. Using gyroscopes, it keeps itself steady while enabling intuitive control: simple lean forward to accelerate and back to brake. Leaning sideways to turn, and rest it on the rear kickstand when you hop off. Its 1,000-watt motor enables a top speed of 20 mph, while the 60-volt / 5.8-Ah battery charges quickly and has a range of up to 15 miles. Battery and speed info can be accessed via the LED display, and it also ships with an electronic horn and LED headlight.