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.
Putting the bikes in the rack is easy, even for people with less upper body strength. Simply lift up the front wheel, and place it in the rack, and then lift the rear of the Mundo up by it's frame and pop it into the rack.
We were concerned that the sideloaders would rub and scratch the paint on the second bike. In our test, this did not happen, because the sideloaders rubbed up against the rubber of the tires on the second bike. If it was a major concern, a user could tape or zip tie some cardboard between the bikes to prevent any contact at all.
The rack conveniently folds up against the vehicle when not in use.
**Please remember if driving with an electric bike to remove the batteries before putting your electric bike on a car rack, because the vibrations of the road can decrease battery life.