The big challenge with electric bikes on bike is the additional weight of the motor systems, which typically add ~15-20 pounds to a bike. We recommend The Hollywood Racks Sport Rider for Electric Bikes (HR1450E). It is an easy-to-use hitch mounted rack that fits standard 2" trailer hitches on cars or trucks. Designed for the additional weight of electric bikes, it has the capacity for two elMundos . The sliding wheel supports make it easy to adjust to longer wheelbase bikes, such as the Mundo, and also fit a shorter wheelbase bike such as a Boda Boda or a road bike.