The Baer EradiSpeed+, 2-piece rotor upgrade features a premium, purpose-cast rotor mounted to a black anodized, 6061-T6 aluminum hat with NAS aircraft grade hardware. Eradispeed+ rotors are manufactured from quality iron materials with increased mass in the friction area and have a curved vane design designed providing greater air flow and improved heat dissipation to outperform the factory units they replace.