Pretty cool clip of how the Red Bull Dirt Pipe comp works. they let you ride for 2 hours and then judge all the tricks you did rather than having you do 3 or 4 runs and judging each.<br /><br /><br /><img src="http://ll.broadbandsports.com/images/18430_bmx_1_17664_13531_flvhigh.flv.jpg" alt="Red Bull Dirt Pipe Australia" title="Red Bull Dirt Pipe Australia" width="150" height="90" alt="Red Bull Dirt Pipe Australia"/>
