With a staggering cash and prize payout valued at nearly $60,000, the 2009 U.S. Open of Mountain Biking continues the legacy of offering the largest pro-purse in America and the most competitive gravity racing in the nation. Set to take place on May 22 through 24th, elite mountain bike racers from across the globe will converge at Diablo Freeride Park to battle for the most coveted title in American mountain bike racing…. Details
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