Harley-Davidson XR750
The company made the XR750 for racing on the dirt road and a regular one. Mark Brelsford, Evel Knievel, Cal Rayborn and Jay Springsteen all drove one of these things. It got so popular that collectors now actively seek it out. In 1998, the Art of the Motorcycle and the American History on the Move exhibits featured this model. Needless to say, it was a truly iconic entry from Harley-Davidson.
Ducati Supersport
The Supersport bagged both the 1st and 2nd places in the Imola 200 race. Ducati manufactured the model from 1972 until 1981. It had smooth handling, a new body style, and a twin-cylinder engine. It made it all easier for the bikes that succeeded it. Bruno Spaggiari and Paul Smart drove it in the Imola 200 race!