Sean Collier's KX500 versus KX450 with Motocross Action Magazine

For this test we took Sean Collier's race bikes from the Glen Helen National and tested them back to back at LACRMX. Check out all the trick parts on both these beautiful looking bikes. To see the full test look for an upcoming issue of Motocross Action Magazine Subscribe to Motocross Action: https://hi-torque.com/product/subscribe-to-motocross-action-magazine/ Follow Motocross Action: http://www.youtube.com/channel/UC13uOawMwZh56D2dEn41Gyw/feed?view_as=public Motocross Action Website: http://www.motocrossactionmag.com/ Motocross Action Facebook: https://www.facebook.com/pages/Motocross-Action/179374025430397?fref=ts Motocross Action Twitter: https://twitter.com/MXAction Motocross Action Instagram: http://instagram.com/motocrossactionmag