I am carrying two ebikes, with mid-drive Bafang motors, on a hitch-mounted rack. I’m carrying them on a car that is towed behind a Motorhome. I have a waterproof cover but it covers the taillights of the car. The water is thrown from the road and gets underneath the cover. Has anyone found a good way to keep the motor dry as well as protect the display and electronic connections on the handlebar?