50 Years of Champions ✨1972–1976 Back to the beginning, with the introduction of some of the sport’s earliest stars and classes, including Marty Smith, Bob Hannah, Gary Jones, Brad Lackey, and more to both the 125cc class and the very short Yamaha/AMA Super Series of Stadium Motocross—aka modern-day supercross. 😏 LINK IN STORY #ProMotocross #50Years #Motocross #History