the stunts are awsome, but i they fell head first onto the concrete it wouldn't be too pleasant, especially the guys putting both legs over the handle bars, they are only going VERY slow though, what amazes me is that guy doing wheelies on that suzuki road bike, that is ****** extreme! they weigh o much & he makes it look just like ur first step, they weigh over 100 kg EASY, i guess once u r up that hihg in the wheelie it becomes simple, u just shift the centre of gravity backwars on the bike & it will stya there as long as ur leaning backwards, sounds borng but i learnt it in an aviation class about the centre of gravity in planes.
LOL