We usually travel with 4 bikes on a Thule hitch rack. Now looking to add 2 kayaks. How/ where do you store kayaks whether inside or outside of your C.?
Regarding trailers, one can put cross bar on a utility trailer and anything that will mount to cross bars can go on top of the trailer. I just U bolted two tubes across and I can carry 4 bikes on top of mine on Thule carriers. Kayaks would just need the appropriate saddles.