In this video we get to watch enduro racers tackle the mountains of Romania as part of the <a href="http://www.redbullsignatureseries.com/" target="_blank">Red Bull Signature Series</a>. The Signature Series showcases some of the most innovative snowboarding, mountain biking, freestyle motocross, ice cross downhill skiing and BMX events all over the world. The video below is the full episode of hard enduro racing, one of the most extreme and challenging forms of  racing, period. These riders do not even get a map (or first-hand knowledge of the terrain) for their 400-mile race up and down the Carpathian Mountains in Romania.

httpv://youtu.be/VxBzvziYAdk

The song featured at the beginning of the video is Sail (Ultimate Gravity Remix) by Awolnation.

View more Red Bull Signature Series videos at <a href="http://www.youtube.com/show/redbullsignatureseries?s=1" target="_blank">http://www.youtube.com/show/redbullsignatureseries?s=1</a>.