XFR manufactures the best ATV aftermarket parts in the world! Extreme Fabrication Racing Pro Series II Nerf Bars are brand new custom engineered for your Yamaha Raptor 660 ATV, and are designed to maximize rider safety and protection from the hazards of aggressive and technical riding, with the added benefit of full heel guards and sure grip foot pegs. These Pro-Series Nerf Bars are 100% hand crafted and made in America from domestic high quality aircraft grade aluminum to ensure superior strength and durability. They are designed to be a direct bolt on, so no modifications are needed. All necessary hardware for installation is included.