I see many photos of a Melbourne rig with bike racks or storage containers mounting on the back bumper or hitch. For the life of me, I donít see how those rigs are within the GVWR limit with the rig loaded up. When the wife and I travel, we load up the rig and are right at the GVWR or under by just 50 lbs. We only travel with 10 gallons of fresh water max and always dump the tanks before we hit the road. Our rig has a GVWR of 11,030 lbs. I do have a spare tire mounted on the back hitch (Roadmaster brand), which I know eats into the GVWR, but I am more comfortable with a spare tire on hand. Your thoughts and comments will be appreciated.