AMA Motocross 2018. Unadilla National. Highlights (Tape)
AMA Motocross 2018. Unadilla National. Highlights (Tape)
The AMA Motocross Championship is an American motorcycle racing series. The motocross race series was founded and sanctioned by the American Motorcyclist Association (AMA) in 1972. Is the major outdoor motocross series in the United States and is managed by MX Sports Pro Racing.
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