Professional racing here in the USA is on the cusp of major transformation.
Professional racing here in the USA is on the cusp of major transformation. With the advent of the World Supercross Series and the return of the AMA Arenacross series, there are finally some options for racers to consider. While the AMA Supercross series and MX Sports national motocross championship are the standard for what a full season of racing looks like, typically, that could be changing.


