The R1 Concepts Geo-Carbon drilled-and-slotted rotor is a GeoPerformance replacement rotor for front and rear service on 2013–2020 BMW 440i applications. It uses drilled holes and slots to help keep the pad contact area clearer and maintain consistent rotor face characteristics across the specified years, limiting statements to the rotor design and the explicit vehicle application.
DFC 13-20 BMW 440i Front & Rear Drilled & Slotted Geoperformance Rotors