The hills of Dyffi Valley in Wales, United Kingdom, are molded into a relentless test of MTB skill as Dan Atherton's brainchild returns for a fourth year. Twenty of the world’s best and bravest riders are put to the test in this one-of-a-kind race. _________________________________________________ Experience the world of Red Bull like you have never seen it before. With the best action sports clips on the web and original series, prepare for your "stoke factor" to be at an all time high. Watch Red Bull TV: win.gs/WatchRBTV See into our world: goo.gl/J49U Red Bull on Facebook: win.gs/redbullfb Red Bull on Twitter: win.gs/redbulltwitter Subscribe to Red Bull on Youtube: win.gs/SubToRedBull Subscribe to the Red Bulletin: win.gs/TheRedBulletin Sign up for our Newsletter here: win.gs/RedBullNewsletter