The DFC Geomet-coated left rear drilled rotor for 2021–2025 BMW M2 is a hi-carbon alloy direct-fit replacement that restores rear braking with drilled rotor ventilation. Constructed from G3000/G11H18 iron castings with OE vane design for effective heat dissipation, the rotor is precision mill-balanced to minimize vibration, fine-turned to a 16 RMS finish to aid pad break-in, and finished with Geomet corrosion protection. DTV ≤0.10 mm; lateral runout ≤0.50 mm.

DFC 21-25 BMW M2 Left Rear Drilled Hi-Carbon Alloy GEOMET Coated Rotor