I have a great solution for you. Unfortunately, we do not carry any swinging hitch cargo boxes that swing out to the driver's side. However, for a great swinging cargo box that swings to the passenger's side of your 21XG Coachmen Cross Trek, I recommend the Yakima EXO SwingBase with GearLocker Enclosed Cargo Carrier # Y62VR. With the EXO, you can also attach a TopShelf for Yakima EXO SwingBase # Y94VR for extra storage. The great thing about the EXO is that it comes with a simple bolt-on... view full answer...
I recommend going with the Hollywood Racks RV Rider Bike Rack # HLY64FR for your application because it's been tested and approved for the extra movement at the back of a motorhome or towed vehicle plus it can accommodate 80 lb e-bikes with up to 5" tires so basically anything you'll ever own can be carried by this beast.
It is recommended to remove the batteries of e-bikes prior to transport though so you'll want to keep that in mind prior to heading down the road.
Attached is a review... view full answer...