Watch what happens when professional mountain bike rider's Niki Leitner, Amir Kabbani, Cam McCaul, Yannick Granieri, Martin Soderstrom, Geoff Gulevich, Kurt Sorge, Cam Zink, Andreu Lacondeguy and Andi Wittmann cross paths with a medieval castle style MTB course. http://nineknights.comhttp://facebook.com/nineknightshttp://redbull.comWatch the Full Clip here: http://www.youtube.com/watch?v=P7cm7YZT_B0Song:Rob and Flo "Learn to Fly"___________________________________________________________Experience the world of Red Bull like you have never seen it before. With the best action sports clips on the web and YouTube exclusive series, prepare for your "stoke factor" to be at an all time high.Red Bull on Facebook: http://win.gs/redbullfbRed Bull on Twitter: http://win.gs/redbulltwitterSubscribe to Red Bull on Youtube: http://www.youtube.com/subscription_center?add_user=redbull

  Stewart Ferguson