Any two-wheeled device that has handlebars, has a floorboard that is designed to be stood upon when riding, and is powered by an electric motor. This device may also have a driver seat that does not interfere with the ability of the rider to stand and ride and may also be designed to be powered by human propulsion. This definition is taken from Vehicle Code Section 407.5, which goes on to exclude the following from the definition: an electric personal assistive mobility device, a motorcycle, a motor-driven cycle, or a motorized bicycle or moped.