Kenny Roberts won three consecutive 500cc World Championships in 1978, 1979, and 1980. His Yamaha—the OW series works machines—was never sold to a privateer. No full technical specification was ever published. The OW48, the 1980 title-winning machine, is still one of the most studied and least understood racing motorcycles in Grand Prix history. Roberts changed how 500cc bikes were ridden. Yamaha kept the details of how they built his machine entirely to themselves. . . . #OneLungRacing #KennyRoberts #Yamaha #OW48 #YZR500 #500cc #GPRacing #TwoStroke #2Stroke #FactorySecret #GrandPrix #RacingLegends #MotorcycleHistory #MotoHistory #YamahaRacing #WorldChampion #ClassicGP #WorksBike #FlatTrack #KingKenny