Yeah i agree, i dunno but i think it's a way to quickly reduce a ton of speed on the hairpins without burning through the brake pads and causing a lockup at high speed or losing/ flipping in the turn but yeah it kinda had me going '"No why ? ? - hang it out and slide round !! " but then realised even at 40-50 kmh (judging by his little speedometer) the road probably wouldn't to too forgiving or the dead over the side, lol ...