"According to the AMA, the Big 6 GP Series has grown into their largest amateur motorcycle series in the United States. A Grand Prix event is a closed-course event that includes both natural and graded terrain. In other words, parts of the course are run on a motocross-style track and parts of the course are run on natural or desert terrain. Motorcycle tires of choice for the Big 6 GP race series are the Maxxcross Dual SX, Maxxcross IT, Maxxcross Desert IT and Maxxcross SI. The Maxxis support truck will attend most events, so be sure to stop by to check out our newest products, have your tire questions answered or purchase a fresh set of tires for the race. We’ll even mount them for you."