http://www.racerxonline.com/ To celebrate the 40th Anniversary of AMA Motocross, we take you through all 40 years of the AMA Motocross Championship Series Sat, 25 May 2013 18:37:53 -0400 En Copyright 2013 http://www.racerxonline.com/2011/05/20/40-day-countdown-to-ama-motocross-opener-2010 http://www.racerxonline.com/2011/05/20/40-day-countdown-to-ama-motocross-opener-2010 Steve Matthes Fri, 20 May 2011 18:45:00 -0400 http://www.racerxonline.com/2011/05/19/40-day-countdown-to-ama-motocross-opener-2009 http://www.racerxonline.com/2011/05/19/40-day-countdown-to-ama-motocross-opener-2009 Steve Matthes Thu, 19 May 2011 17:15:00 -0400 http://www.racerxonline.com/2011/05/18/40-day-countdown-to-ama-motocross-opener-2008 http://www.racerxonline.com/2011/05/18/40-day-countdown-to-ama-motocross-opener-2008 Steve Matthes Wed, 18 May 2011 20:55:00 -0400 http://www.racerxonline.com/2011/05/17/40-day-countdown-to-ama-motocross-opener-2007 http://www.racerxonline.com/2011/05/17/40-day-countdown-to-ama-motocross-opener-2007 Steve Matthes Tue, 17 May 2011 16:20:00 -0400 http://www.racerxonline.com/2011/05/16/40-day-countdown-to-ama-motocross-opener-2006 http://www.racerxonline.com/2011/05/16/40-day-countdown-to-ama-motocross-opener-2006 Davey Coombs Mon, 16 May 2011 17:20:00 -0400 http://www.racerxonline.com/2011/05/15/40-day-countdown-to-ama-motocross-opener-2005 http://www.racerxonline.com/2011/05/15/40-day-countdown-to-ama-motocross-opener-2005 Jason Weigandt Sun, 15 May 2011 12:10:00 -0400 http://www.racerxonline.com/2011/05/14/40-day-countdown-to-ama-motocross-opener-2004 http://www.racerxonline.com/2011/05/14/40-day-countdown-to-ama-motocross-opener-2004 Jason Weigandt Sat, 14 May 2011 19:20:00 -0400 http://www.racerxonline.com/2011/05/13/40-day-countdown-to-ama-motocross-opener-2003 http://www.racerxonline.com/2011/05/13/40-day-countdown-to-ama-motocross-opener-2003 Jason Weigandt Fri, 13 May 2011 16:55:00 -0400 http://www.racerxonline.com/2011/05/12/40-day-countdown-to-ama-motocross-opener-2002 http://www.racerxonline.com/2011/05/12/40-day-countdown-to-ama-motocross-opener-2002 Jason Weigandt Thu, 12 May 2011 18:05:00 -0400 http://www.racerxonline.com/2011/05/11/40-day-countdown-to-ama-motocross-opener-2001 http://www.racerxonline.com/2011/05/11/40-day-countdown-to-ama-motocross-opener-2001 Jason Weigandt Wed, 11 May 2011 16:40:00 -0400