MTX Hornet Disc & Premier Pad Rear Kits are the perfect brake maintenance kit for your bike, including a strong and durable MTX Hornet Brake Disc, constructed from SUS 420 stainless steel & heat-treated to HRC 36+-2 paired with high-quality Premier PR Series Sintered Brake Pads that have been upgraded to a HIGH DENSITY sintered metal compound suitable for all types of MX. The perfect alternative to expensive OEM replacements while designed to meet and exceed OEM specifications. Rear Kit Contents: MTX HORNET BRAKE DISC SOLID WAVE TYPE REAR - MDHS07002 PREMIER BRAKE PADS FULL SINTERED MOTO X - PBPR45 About the Hornet Wave Discs: Using Lightweight induction hardened stainless steel the Hornet Wave discs offer superior strength and durability while using MTXs innovative technology to keep you in control under high- stress braking. Constructed using one complete segment of SUS 420 stainless steel, then heat-treated to HRC 36+-2. MTXs Wave technology ensures your discs stay cool through high strain environments. Disc Specifications: O.D: 245mm I.D: 115mm Minimum Thickness: 3.5mm Disc Position: Rear Fits: Yamaha WR250F 2002 YZ125 2002 YZ250 2002 YZ250F 2002