Race-Driven Inc is proud to announce the Race-Driven MudRat Brake Rotors & Severe Duty Sintered brake pads.This new rotor design has been tested over numerous years in an effort to extend the life of brake pads in excessive mud and other abrasive conditions. The MudRat Rotor is a solid rotor design which keeps mud and other abrasive materials from filling in the vent holes and prematurely wearing your brake pads. These rotors are designed to be used in 90% mud grade or higher. Although our Race-Driven Severe Duty Sintered pads lasted much longer then the OEM pads, we found that customers were still not getting the life expectancy they would like. If you are an aggressive mud rider this is the rotor for you. Fits2014 Polaris Sportsman 550 X2