Many people who have played Trials at a high level (and almost everyone who plays at Ninja level) knows about the trick where you can rotate your bike forward by braking. Sometimes you use it to create more rotation momentum to get up to that ledge your front tire latched onto, sometimes you use it to complete a flip faster, etc.
I always took this as a flaw in the game. I figured it was something they either didn't know about (ie. a bug), or something tied in with the bike physics that just caused it to act irregular when performed in mid air.
Boy was I wrong.
I came across this, and was like, "Wait, that's a real thing?" Seriously awesome.