Adolf Silva lands the second ever double backflip on a downhill bike at the Suzuki Nine Knights Castle at Livigno Mottolino Fun Mountain.Watch more Nine Knights videos:http://www.youtube.com/user/nineknights1https://www.facebook.com/nineknightshttp://www.nineknights.com/Shot 100% on the HERO4® camera from http://GoPro.com.Get stoked and subscribe: http://goo.gl/HgVXpQTo license clips from this video go to https://licensing.gopro.comMusicThe Wytches "Digsaw" InstFor more from GoPro, follow us:Facebook: https://www.facebook.com/goproTwitter: https://twitter.com/goproInstagram: https://instagram.com/goproTumblr: http://gopro.tumblr.com/Pinterest: http://www.pinterest.com/goproVine: https://goo.gl/m3nQz7