Our oversize (OS) MX/Offroad discs are 260mm and utilize our Flame design, offering an improvement of up to 35% in braking performance compared to OEM. They also are 20% lighter than a stock rotor and help to eliminate fading on long downhills! Our CNC machined 6082 billet aluminum adapter bracket must be purchased separately in order to relocate the stock brake caliper to the correct mounting position. For best performance we recommend using our oversize discs with our matching racing compound brake pads.