2000 2001 Polaris Sportsman 500 6X6 O-Ring Chain and Sprocket 80L,116L Sprocket Set includes: 12T, 30T, 30T, 38T sprockets and 520-80L, 520-116L O-Ring Chain All Race-Driven sprockets meet or exceed OEM specifications and use hardened S45C steel. O-Ring Chain helps keep the pins lubricated which reduces friction and helps the chain last longer. Fits 2000 2001 Polaris Sportsman 500 6X6