Yes, the XR750 flat track machine. Far and a way the most dominant racing machine of any kind, be it motorcycle, automobile, boat, airplane - you name it. A 40+ year run of absolutely domination on America's half and full mile dirt ovals, with only a handful of other machines ever winning a championship. It's days are over as a racer, but what a run, from the early 1970's right up into the 2010's. Nothing else has ever dominated any sort of racing for anywhere close to that length of time.
