well mostly dirtbikes
with an amazing WIN at the end 
,and this is my no 1
http://www.stumbleupon.com/su/5P7UKQ/:1z0mElK77:4APxrhX4/www.todaysbigfail.com/view/20111202/
OMG . the idiot doing a stoppie with no helmet :blink: Then wheelies with no gloves :ermm: