I haven’t seen many pictures or ideas on this idea ,,, love em ? Hate em ? Have one ? This looks like what you need if you have a bike like the (next) ? Big frames ect. The only thing is you have to hook up up every time you go…. But if I make one it will be a four wheel cart .. So as not to put too much weight on the seat post …and when off the bike i can pull it... maybe an modified radio flyer wagon or something.. If I am going to have something behind my bike why not take advantage of it right ? Ill put an extra level rack with an plywood deck or something on top level,,,, framed out of pvc pipe or something on the wagon for extra room to haul cooler ..sleep bag .. tent ... heck a pop up camper lol? Cool idea ?