Yakups® brand racks / RV Kayak Racks. Com
This is a heavy duty drop down wheel that goes on the drivers side of the rack and pivots down to the ground. Our rack weighs 108 lbs plus your cargo ... It is designed so that when you open your choice of Heavy Duty Swing arm it supports the racks weight in the open position so excessive stress is not on the hitch swing pivot point..
Here is another link to the video showing the Swing out / drop down wheel with rack https://www.dropbox.com/s/jszi5bhqz57d5ty/Yakups%20w%20swing%20hitch.m4v?dl=0