This listing will fit the following models: 2003 2004 2005 2006 2007 Polaris Predator 500. You will receive the following: 520-94 L Red Non O Ring Chain, 14 T Steel Front Sprocket, 37 T Steel Rear Sprocket. All Race-Driven Steel sprockets are manufactured to meet or exceed OEM specifications. All chains include masterlink, these chains are designed for the casual / recreational rider. Race-Driven offers 4 different qualities of chain, we have our basic Non O Ring Chain, O Ring Chain, CZ MX Gold Series Chain and our highest quality CZ X Ring Chain, please make sure when purchasing a chain and sprocket kit you do so according to the power of your atv and riding style. Our CZ X Ring Chains and CZ MX Gold Series Chains are some of the best on the market and available in kits for extended swingarms.