The World's Toughest Bike Race Is Absolutely Crazy

The world's toughest bike race is absolutely crazy

Video: The Red Bull Harescramble Erzbergrodeo might be the toughest enduro competition on the planet. Five hundred bikers compete in this crazy race that takes place in an old Austrian iron mine. This year's winner, Johnny Walker, attached a camera on his helmet to share his adrenaline-charged ride.

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