lated section 5.14, paragraph a, of the 2009 AMA Supercross an FIM World Championship rulebook, which states no rider may ride in such a manner as to endanger life or limb of other riders???Read More Turtous vs. Hare Supercross Showdown by UMC Staff On April 09, 2009 0 Comment Stewart Wins Again as Supercross Championship Heats Up.In hot pursuit of his second career AMA Supercross championship