Brake Pads for Yamaha Grizzly 450 YFM450 4x4 2007 Front and Rear by Race-Driven Race-Driven Front and Rear Severe Duty Sintered Metal Brake Pads. Race-Driven exclusive sintered metal compound is designed to withstand extreme conditions Excellent performance in mud, water, sand, racing and any other condition you can throw at them 2007 - 2007 - 2007 - 2007 Yamaha Grizzly 450 YFM450 4x4