Look up C90Adventures on Youtube. The guy's name is Ed March.
He rode a C90 Super Cub from Malaysia to the U.K. solo, then from Alaska to Argentina with his then girlfriend Rachel Lasham, also on a C90. They started at Prudhoe Bay, rode down to Canada, crossed the Canadian Prairies in winter time to Newfoundland, road down the east coast to the start of the TAT, then rode the TAT across the U.S. before heading south to Argentina. They went their separate ways after completing the TAT, but both eventually made it all the way down to Ushuaia.
And people think I am crazy riding my CT90 from Brenham to Bastrop lol