Does anyone know if there is a company that makes a cargo rack that attaches to the rear bumper of an rv. I have a travel trailer and I have motorcyle ramps (that I load my bike into my truck with) that I want to place on a rack behind my travel trailer. All the racks I can find only attach to a receiver hitch. I have seen bike racks that mount directly to the bumper but that is it. I have been searching for awhile and have not been able to find a carrier that attaches directly to the bumper and can also carry about 130 pounds. I would make one but, as I am on the road, I do not have the tools to do it, at least not to do it right. If anyone knows of a company that makes anything like a described please let me know. Thanks alot! Happy Camping!