Yes, its perfectly fine to fit an E-bike to a rear mounted cycle carrier, provided it has the crossbar to fit it on. In this case, the bikes weight around 20Kg, so you would only be able to carry two at a time.If your bike has a step-through crossbar, you would normallyuse a false crossbar to mount the bike onto a carrier. Most false crossbars will only take a maximum of 15Kg, so would be unable to support the weight of an E-bike with a step-through crossbar. In this instance, we would recommend a tow bar mounted carrier.