That is very cool. My question is, if the wheels were lighter by being tall and skinny, (like 4 front tires off your bike) could that help offset the drawbacks of having dual wheels? Does a set of dual axels alleviate some of the care in loading for tongue weight?
My MC camper can go from ok to bad by adding two bags of ice to the cooler on the tongue. Fortunately I can jettison the ice till arrival.