Brad Davis is raising funds for American Made EcoSpeed, Welcome to the (R)Evolution on Kickstarter! It's time to stop apologizing for riding an electric assist bike, it's the future of transportation. Welcome to the revolution.
The is a double reduction rigid drive axle, designed to take drive from an electric motor, with hydrostatic input as an option. Power is transmitted to the wheels via a set of double reduction gears and a four pinion differential.