Artrax Racing Oversized Disc Rotors Artrax Racing Oversized Disc Rotors offer outstanding performance and increased stopping power for all late model off road bikes. It is a 270mm full floating rotor made from high carbon steel construction for maximum durability. It includes a billet calliper bracket for proper relocation and easy installation. Technical Tips Mounting a new rotor. Make sure the contact area on the rotor and hub are completely clean, centre the rotor on the hub and tighten to the 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 Racing Oversized Disc Rotors can be used with any type of brake pads, including sintered bronze, Kevlar and ceramic carbon. Fits: Yamaha YZ125 2008-2016 YZ250 2008-2016 YZ250F 2007-2021 YZ450F 2008-2015