XFR - Aluminum .190 Swing Arm Skid Plate Guard Yamaha YFZ450 (2006-2009) Fitment for: Yamaha YFZ450 (2006-2009, 2012-13) *Steel Framed Models Only Manufactured from .190 6060 Heat Treated Aluminum For Maximum Strength Full Coverage for Protection of Sprocket, Chain, and Brake Rotor Integrated Chain Wear Strip Simple Bolt On Design-Made in the U.S.A.