I've been using one for two years now on my Alante 31R. A couple things to be aware of though, especially with that Roadmaster unit (its the one I have). First, if you use a tow bar like the Falcon 2 or Sterling the spring loaded clip that secures the bar when stowed away will interfere with whatever is in the upper receiver slot. I have to grind about 1/8" off of that tab to allow it to function. Also, the bike rack we had stuck out too far so I have to cut it ack a bit to shorten it up and then redrill the pin hole. I'll try to take some pics when I get home from work if that would help. Once it was setup though it worked great.