The DFC Geomet-coated left-front rotor for 2017–2025 BMW M850i xDrive is a hi-carbon alloy replacement that restores braking consistency and provides corrosion resistance. Constructed from premium G3000/G11H18 iron castings with OE vane geometry for improved heat dissipation, it’s precision mill-balanced and fine-turned (16 RMS) to reduce vibration and speed pad break-in. Geomet coating resists corrosion; DTV ≤0.10 mm and lateral runout ≤0.50 mm ensure reliable braking.

DFC 17-25 BMW M850i xDrive Left Front Hi-Carbon Alloy Geomet Coated Rotor