2003-2007 Polaris Predator 500 Red O-Ring Chain 520x94L 94L Red O Ring Chain Race-Driven O Ring Chain's tensile strength = 8200+ lbs. All chains include masterlink. O-Ring Chain helps keep the pins lubricated which reduces friction and helps the chain last longer. Fits 2003 2004 2005 2006 2007 Polaris Predator 500