You don't need to ditch your current ride to enjoy the benefits of electric power. You just need a GeoOrbital Powered Bicycle Wheel and a wrench. It combines a removable, rechargeable Panasonic battery with a 500W brushless motor to provide propulsion for up to 50 miles if you pedal, and up to 20 if you don't. The aerospace-grade aluminum frame keeps things in place while keeping weight down, and the clip-on throttle works just like a gas pedal, giving you access to speeds of up to 20 mph on-demand. Available in two sizes to fit nearly any bike.