Top Hat to 2 Shoes - Cumberland Enduro Stage 4

 wow... if you're helmet is bouncing around that much you should think about getting a different helmet. that shit needs to stay snugly in place to function properly. if you cant put your head upside down and move your head around with the strap un-done, without it falling off, you might as well not even wear it.

 i think your camera was loose. looks like there as an earthquake going on while you were riding