1979 AMA Pro Motocross Championship
RedBud Track 'n Trail
Buchanan, MI US
July 1, 1979
50 Years of Pro Motocross 1980 Nineteen-eighty saw both AMA Motocross and Supercross gaining more traction, but unfortunately, the year ended with tragedy: the passing of highly respected veteran Gaylon Mosier in a cycling accident.