Here is a bunch of Motorbike trailers photos from GOOGLE...
Motorbike TrailerIf you are just going to need a trailer for a bike you probably can get away with a more low profile open trailer. I'm sure with all the things I would want to bring along on my camping trips I would need an enclosed trailer behind my truck camper for sure. Truck campers sure don't have alot of extra storage space...
I carry alot of supplies and necessary items in the bed of my truck and on my OFF-ROAD POPUP trailer front deck,
Roy Ken