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The DFC Geomet-coated right-front rotor for 2017–2025 BMW 840i Gran Coupe is a hi-carbon alloy replacement that restores braking feel and resists corrosion. Featuring premium G3000/G11H18 iron castings and OE-style vanes to maximize heat dissipation, it is precision mill-balanced and fine-turned (16 RMS) to minimize vibration and aid pad break-in. Geomet coating protects the surface; DTV ≤0.10 mm and lateral runout ≤0.50 mm maintain consistent stopping.
DFC 17-25 BMW 840i Gran Coupe Right Front Hi-Carbon Alloy Geomet Coated Rotor
