GreenWheel Converts Bikes to Electric
From BikeRumor: “GreenWheel is an all-in-one electric powered wheel being tested by MIT scientists. It contains the motor, battery and electronics all inside the hub, … Read more
From BikeRumor: “GreenWheel is an all-in-one electric powered wheel being tested by MIT scientists. It contains the motor, battery and electronics all inside the hub, … Read more