Honda U3-X

The Honda U3-X is an experimental self-balancing one-wheeled personal transporter shown in 2009. Honda's chief executive unveiled it on 24 September 2009 and announced that it would be shown at the 2009 Tokyo Motor Show; Time magazine called it one of the 50 best inventions of 2009. In April 2010 Honda engineers gave a short demonstration of two of the devices in Times Square, New York City, and in May 2010 Honda representatives demonstrated the U3-X at the Honda Collection Hall in Motegi, Tochigi, Japan. Honda developed it with technology originally developed for ASIMO, the bipedal humanoid robot project, and says the U stands for unicycle and for universal. It weighs 10 kg and travels at 6 km/h, a similar speed to the Toyota Winglet, and it fits comfortably between the rider's legs. Honda presented the UNI-CUB as its successor at the Osaka Motor Show in 2013.