Need to see some 500 AFs at this event!
http://www.americanmotorcyclist.com/New ... y_Cup.aspx"No homologation is necessary, and the engine displacement must be at least 125cc. Beyond that, nearly anything goes -- two-stroke, four-stroke, singles, twins. Weight restrictions are gone. Large-displacement two strokes are welcome," he said. "We are also implementing new sound-testing procedures. We will be using the new 2-Meter Max sound-testing method that will be implemented for the 2012 Monster Energy AMA Supercross, an FIM World Championship