AMA Welcomes Roadracing Series As Featured Series

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American Motorcyclist Association Welcomes Roadracing Series As AMA Featured Series The American Motorcyclist Association is pleased to announce that the American SportBike Racing Association and U.S. Grand Prix Riders Union Championship Series have joined the AMA sanctioned events calendar as AMA Featured Series. The events, which feature some of the country’s most competitive amateur roadracing, […]