The DFC Geomet-coated rotor for 2009–2019 BMW Alpina B7 xDrive rear is a hi-carbon alloy replacement designed to match OE performance while adding corrosion resistance. Constructed from premium G3000/G11H18 iron castings with OE vane geometry for heat dissipation, it is precision mill-balanced for smooth stopping, finished 16 RMS for pad break-in, and protected with Geomet coating. DTV up to 0.10 mm and lateral runout up to 0.50 mm.
DFC 09-19 BMW Alpina B7 xDrive Rear Hi-Carbon Alloy Geomet Coated Rotor