Brake Disc & Pad Rear Kit - Yamaha YZ250F '20 - WaveBuy together and save! Our Disc and Pad kits include an MTX Brake Disc and GOLDfren Brake Pad set for your motorcycle or ATV. The included discs are constructed using one complete segment of Japanese SUS 420 stainless steel, then heat treated to HRC 36+ 2. Meanwhile, the included pad is designed for low abrasive interaction with the rotor, long life and self cleaning capabilities necessary in diverse riding conditions.