Flips and tricks and racers on the course at the 2010 SF Bike Expo, accompanied by obnoxious technological music. Skip to 0:35 and 1:18 if you just want to see the wipeouts.
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Flips and tricks and racers on the course at the 2010 SF Bike Expo, accompanied by obnoxious technological music. Skip to 0:35 and 1:18 if you just want to see the wipeouts.