Just a collection of badass riders pointing the bikes downhill and extremely skilled cinematographers pointing their cameras to capture it.  Simple enough equation but hard to pull off as well as the dudes at Rocky Mountain Bicycles.  They’ve been the bike game since 1981 and their media dept. is f’ing quality. Best 4 minutes of riding I’ve seen a while:

“Back and forth, forward and back. Mastery on the bike comes from constant repetition. Whether it’s your hundredth time down a trail or you’re about to drop into a new one for the first time, steady, well-rehearsed motions are what will get you through. So ride fast and send it deep, because the Slayer is built for those who charge.”