Team Obsolete's Rob Iannucci is not your typical flag-waving Harley-Davidson fanatic. One of the pioneers of vintage roadracing in America, and still one of the sport's greatest global benefactors, he got his start racing British-built Matchless G50s. His remarkable collection-numbering nearly 80 racebikes, some the most historically significant and valuable in the world-is mostly European. There are plenty of G50s, of course, plus BSA twins and triples, AJS Porcupines and 7Rs, and enough factory Benellis and ex-Agostini MV Agustas "to grant him honorary Italian citizenship," says his friend Stu Carter. There's even a breathtaking Honda 250 six hidden in the Brooklyn, New York, warehouse where he houses his stash. But even amongst such exclusive company, Harley-Davidson's brutish XRTT roadracers hold a special, almost sacred, place.