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Four main racing formats: XC, downhill, enduro and 4X. Each discipline tests different aspects of fitness and riding skills. Unique bikes designed for each discipline's needs
Games ran August 8-24, 2008 in Beijing, China's capital. 204 Olympic committees sent 11,000 athletes to compete in 28 sports. Host city Beijing invested heavily in Olympic facilities since 2001
BMX racing originated in Southern California in 1969 with Ron Mackler's Palms Park races. First organized BMX track opened by Mackler with $4.50 entrance fee in 1973. Bicycle United Motocross Society (BUMS) founded in 1970 as first sanctioning body
DH involves steep terrain with jumps up to 12 meters and drops over 3 meters. Riders use lifts or automobiles due to bike weight limitations. Bikes feature suspension over 8 inches for quick descents. Competitors must maintain continuous course between tape strips
Race takes place entirely in France with multiple summit finishes. Seven sprinters' opportunities throughout the race. No entirely flat stages, making it challenging for fast men. Crosswinds pose risk in exposed Northern France sections