We found this neat looking rear rotor from Moto Masters. According to the manufacture, all Street Flame Discs are manufactured from hardened and refined Chrome-Molybdenum alloy steel, lasercut, CNC drilled and surface machined for a perfectly flat surface and precise fitment. Cooling channels have been integrated into the disc design, which also aid in the removal of water and dirt. As a finishing touch, all discs are surface coated with a 10 micron zinc plating to help protect them against weather influences.