Since becoming part of the Lucas Oil AMA Pro Motocross Championship in 2005, Thunder Valley MX Park has become one of the most anticipated stops on the entire schedule. As the lone national event in the Rocky Mountain region, fans come in droves from throughout the Midwest for the chance to watch the world's best riders in action. With its mile-high elevation and sprawling layout, Thunder Valley presents one of the most unique challenges for both the riders and their teams. The thin mountain air robs bikes of power while also testing a rider's endurance. It is a one-of-a-kind combination that is only found at Thunder Valley and each year, it is a storyline in the outcome of the race.
Last year at Thunder Valley, Dungey broke through for his first-career win at the facility, posting 2-1 moto scores. In the 250 Class, then-Monster Energy/Pro Circuit/Kawasaki rider Christophe Pourcel swept the day's motos for his second overall victory of the 2010 season.
This weekend, Dungey enters the race as the only return winner in the 450 Class at Thunder Valley. While Reed and Villopoto, a two-time winner at the track in the 250 Class, lead the way as challengers, several additional front-runners, like Muscle Milk/Toyota/JGR's Davi Millsaps and Red Bull KTM's Mike Alessi, will look to put themselves in the mix. Also, Colorado native Andrew Short will be in search of his first podium performance of 2011 for Red Bull KTM at his hometown track.