US mountain bike season kicks off at 24 Hours of Old Pueblo

Mountain bikers from around the world are arriving in Tucson, Arizona, to participate in the 13th annual Kona Bikes 24 Hours of Old Pueblo being held at Willow Springs Ranch. The organizer claims it is the largest 24-hour mountain biking event in the United States. Todd Sadow, president of Epic Rides, describes it as the "mountain bikers' Burning Man".