I use a glideaway rack on the back hitch with an extension tube. I can move it out of the way of the TC door without removing the bike.
The bike(s) hang from 2 horizontal bars. A temporary cross bar would be needed for a non crossbar bike. This might not be suitable for heavy ebikes. I shortened the bars on mine from 4 bikes to 2.
I travel with a cover on the bike and also attach 2 camcleat straps between the rack bars and the TC rear jacks to reduce bounce. I use anti rattle clamps on each hitch connection.
