The DFC Geomet-coated dimpled & slotted rotor for BMW 230i (2012–2020), rear, combines dimpled and slotted surfaces with a Geomet corrosion-resistant finish on a hi-carbon alloy casting. Engineered from premium G3000/G11H18 iron and using an OE vane layout, it aids heat control. Precision mill-balancing and a fine-turned 16 RMS finish support smooth pad break-in; DTV and lateral runout are held to strict limits for consistent braking.
DFC 12-20 BMW 230i Rear Dimpled & Slotted Hi-Carbon Alloy Geomet Coated Rotor