Brand New Race-Driven Standard Brake Rotor and Severe Duty Sintered Metal Brake Pads. You will receive 1 brake rotor and 1 set of brake pads to replace the rear brakes on the following: 2004 2005 2006 2007 Yamaha YXR660 Rhino 660. New Race-Driven Standard Brake Rotors are made from tempered stainless steel for not only a great look but also optimal performance. Standard Rotors are equal to or surpass OEM standards. Race-Driven Severe Duty Brake Pads are a sintered metal pad which will far out last any semi metallic or organic pad on the market. These pads will work excellent in all conditions including mud, water, sand, racing and any other condition you can throw at them. Race-Driven is committed to bringing the highest quality products to all riders at an affordable price. Customer Driven – Quality Driven – Race-Driven.