Those are impossible to ride for most people. Someone brought one along to one of the 2CV camps I used to go on, years ago (coincidentally, at the same meeting we also had a car with backwards steering). I couldn't ride it at all ... if you think about it, even riding in a straight line you're constantly making imperceptible movements of the bars just to keep your balance. With reverse steering this is just not possible for most people. Although there was one chap who could ride it with no problem at all. Must be just the way some people's minds work, I suppose.