Thinking of fabricating a rear class 1 or 2, 1.25 hitch reciever to bolt on the rear of the RT622 trailer for temporary use of a small cooler. I carry a lot of camping gear when we go camping, so there is no issue with tongue wt. The cooler i have is a small 16qt cooler. (smaller thant the 20qt cooler in pic) but you get the idea. I know a lot of people carry them on the tongue instead but I thought this would be a quick easy way to mount and dismount the rack. A lighted tag holder could be fitted to the carrier and tag relocated there when in use. Cooler would be on the back, out of the wind and debris from rear tire. Just an idea.

FB.
RT622 rear reciever.jpg