Brake Rotor Disc for Polaris 800 Sportsman EFI HO 2007-09 Rear x1 by Race-Driven Race-Driven Rear Standard Brake Rotor. Race-Driven Rotors are a quality tempered stainless steel affordable replacement for OEM Standard rotors are designed to replace original stock rotors 2007 - 2008 - 2009 Polaris Sportsman 800