This is the one and only GT Thunder Polyurethane rotor guard. Trusted by top GNCC racers since 2008. The simple poly construction allows the guard to move with your swingarm under hard impacts. The rear disc can wear into the guard without warping unlike steel guards.
-Fits Yamaha YFZ450R models only
-Made in USA
-Must be installed with 4 supplied 6mm bolts.