The DFC Geomet-coated rotor for 2011–2019 BMW 640i coupe front is a hi-carbon alloy direct-fit rotor offering corrosion-resistant Geomet coating and OE-style cooling. Built from premium G3000/G11H18 castings with OE vane configuration, it’s precision mill-balanced to reduce vibration and improve stopping. A fine-turned 16 RMS finish aids pad break-in; DTV (0.10 mm) and lateral runout (0.50 mm) are controlled to tight tolerances.
DFC 11-19 BMW 640I Coupe Front Hi-Carbon Alloy Geomet Coated Rotor