"These unique and distinctive discs are among the most cutting edge rotors on the market today. High quality stainless steel construction Improved performance over traditional round rotors Excellent cooling properties Great durability, even in the harshest conditions Available for all popular MX and Enduro bikes TECHNICAL TIPS Mounting a new rotor Make sure that the contact area on the rotor and hub are completely clean, centre the rotor on the hub and tighten according to OEM torque specs. New brake pads should always be installed when fitting a new rotor and we strongly recommend that new disc bolts are also fitted. Pad compatibility Artrax rotors can be used with any type of brake pads, including sintered bronze, Kevlar and ceramic YAMAHA REAR DISC 240mm OEM - B2W-2582W-00-00 YZ125 22-25 YZ250 22-25 YZ125X 23-25 YZ250X 23-25 YZ250F 21-25 YZ450F 20-25 YZ250FX 22-25 YZ450FX 21-25 WR250F 25- WR450F 24-25