Meet the FlyKly Smart Wheel. This new device—which comes in eight different colors—looks like any other rear wheel, except that it has a monster-sized hub stuffed full of electronics. Those guts include a small engine that can zoom you along at a top speed of 20-miles-per-hour for up to 30 miles without pedaling using energy harvested from the turning of your wheels. They also include a small computer with GPS capabilities that tracks your ride and can offer suggestions for better routes with the help of a smartphone app (for either iOS or Android). That app is easily accessible with the accompanying Smart Light, a light that serves as a mount for your phone as well as a charger.