This topic has been discussed many times in the forums,
is a link to over a thousand posts...By clicking on "find" and typing in motorcycle I was able to find these...You can search using the "find" feature,but I recommend unchecking the box that restricts your search to one forum.
You might search "hauler" or some other words as well.
My comment would be to first insure your coach manufacturer would recommend the placement of such a device on your coach, as the installation removes your single hitch and places a triple receiver on the back of your coach....There is also the concern of how far this device sits from your rear axle and the cantilever "effect" it may have from hanging there. They've been used in a lot of different applications and one of our sponsors is Blue Ox, who offers one originally manufactured by Overbilt.
is a link to the Blue Ox carrier page.