AS3 Performance Rear Brake Disc for Gas Gas EC MC XC 125 200 250 300 400 450 515. HONDA CR 125 250 500 CRF 250 450 230 XR 650 AS3 7075 ALUMINIUM REAR SPROCKET 52T. They are produced from premium quality hardened stainless steel with ventilation slots to help keep the brake disc cool and clean.
