Manufactured by Factory Spec Includes (1) rotor Made of premium tempered stainless steel Provides strong, reliable braking power Durable - works with all types of brake pads Replaces the REAR rotor on the Yamaha ATVs listed below: 2001 Yamaha Raptor 660 (YFM660R) 2002 Yamaha Raptor 660 (YFM660R) 2003 Yamaha Raptor 660 (YFM660R) 2004 Yamaha Raptor 660 (YFM660R) 2005 Yamaha Raptor 660 (YFM660R)