I have a 28' Holiday rambler 5th wheel. After looking at many options, I had my rear bumper reinforced by a hitch fabricator. It cost $230...I then purchased a 1UP USA bike rack. It was pricey but does act like nor resemble the hitches I see bouncing around on the back of trailers and or cars....The whole process was not cheap but I am not concerned at all regarding it falling off or losing the bikes. The rack switches easily between my truck or trailer. I am not retired thus spent a little extra so I wouldn't need to worry about it later...