I bet having the longest wheelbase in the world will invalidate it in the US. We hired a H-D each when on hols there, got lost down some minor country road and had to do a U turn. Our conclusion was that the width of the US backroads is determined by the turning circle of a H-D, since on full lock it took the whole width of the road to do the turn.
So, you won't be able to do a u-turn on a back road in the US on this bike. In the UK you will just have to continue to the next roundabout before you can turn round. Or find an airport.