Performance Machine 320mm Front Brake Rotor For Harley Performance Machine Race Series 320mm Full Floating Brake Rotors exemplify precision and durability. Crafted with meticulous attention to detail, these rotors are CNC machined from 420 stainless steel to ensure a perfect flat and parallel surface, meeting Rc36 specifications for hardness. The innovative full floating design enhances resistance against bending and warping under stress. Featuring a wave cut and sweep-pattern drilled braking surface, it optimizes heat dissipation and reduces weight, boosting your bike's braking performance significantly. Constructed with a 7075-T6 aluminum inner carrier, it achieves a lightweight yet sturdy design, further refining your ride's responsiveness. Embellished with a laser-engraved PM logo, these rotors signal a commitment to high-caliber performance, suitable for 320mm rotor applications. Features: CNC precision machined Full Floating design dissipates heat, resists warping Lightweight 7075-T6 inner carrier 420 Stainless steel outer band - Material thickness: 0.200 in. Available in 320mm front only 2.22 ID with 3.250 in. BCD