Bike Racks for a trailer

CodyClassB wrote:
I am sorry to say this but you make it very complicated . I have been using the hitch mount for car/RV/truck for many years without any problems. I carry 3 or 4 bikes using this http://www.doityourselfrv.com/wp-content/uploads/2014/02/rv-bike-rack-frame-mount.jpg

And if you worry about loosing your bike, get a lock.

bikendan wrote:
most trailers have bumpers with cheap welds that will not hold up to a bumper-mounted bike rack, especially ultralight trailers.
if you have to mount them on the back of the trailer, then having a 2" receiver welded AND braced to the frame, is the only safe way to do this.
BUT with many manufacturers, doing this mod will often void the frame's warranty.

motorhomes and heavier 5th wheels may have much sturdier bumpers that might be able to handle a bumper mounted setup.

personally, my bikes are too valuable to mount them where i can't see them. i'd rather put them in the trailer with a blanket over them.
the best solution is a roof mounted system, from Yakima or Thule.
there are a couple of companies in Canada, that make a tongue mounted bike rack system but they are very expensive and difficult to buy in the U.S.

not worried that they might be stolen, i worry that they'll fall off the back of the trailer while in transit.
i think you're missing the point about not putting loaded bike racks on the rear bumper of a trailer while in transit.
not about whether a particular bike rack is appropriate or not.