hello ,I had a three wheeled go kart when I was a kid growing up in alaska around big lake it had a dune cycle logo on the seat it was styled symilar to the jc penny three wheeler but with the frame dipping down about 6" off the ground at the seat,it had a rear diff in the axle.I was told people raced them around anchorage before atc's became popular .up the street from my house was another one but with full suspension (independent rear) it to looked like a factory job.I havent found anything for information on these but there were a few around alaska. anybody heard or know of these