Olympic Gold Medalist Jonny Moseley checks out the dirt jumping scene in Marin CA and gives it a shot himself<br /><br /><br /><img src="http://ll.broadbandsports.com/images/26110_thumb.jpg" alt="Bikeskills.com: Adventures with Jonny Moseley Part II" title="Bikeskills.com: Adventures with Jonny Moseley Part II" width="150" height="90" alt="Bikeskills.com: Adventures with Jonny Moseley Part II"/>
