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. The series is the ...
MORGANTOWN, W.Va. (August 2011) – The world’s fastest riders and the world’s most prestigious motocross championship are prepared to hit the home stretch this summer, and next weekend, the series ...
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