One man was world champion on two wheels and four. Nobody has done it since. Would you walk away from the top... just to start from zero? Tell us in the comments. 👇 Follow One Lung Racing for more machines the world tried to forget. Footage credits for every clip are shown on-screen throughout the video. #JohnSurtees #MVAgusta #Ferrari #Formula1History #GrandPrixMotorcycle #RacingLegends #TwoWheelsFourWheels #IsleOfManTT #OneLungRacing #MotorcycleRacing