This is pretty damn impressive:
Dude breaks his chain right out of the game and is still able to pull off the win.
No kidding! Gwin's amazing.
I guess you don't need to pedal when downhill mountain biking.
There was a flat section (around 0:51 of the video) where most of the guys were hammering on the pedals because of a head wind.
This is Gwin's run from 2014 at Leogang: