GiroDisc 14-20 BMW M2/M3/M4 (F8X w/Red/Silver/Gold Calipers Incl CCM) 380mm Slotted Rear Rotors

These GiroDisc 380mm slotted rear rotors are built with a unique two-piece design, featuring a floating hat made from 6061-T6 aluminum and a high-carbon iron rotor ring. This construction helps to reduce unsprung weight compared to a traditional one-piece rotor, which can make a noticeable difference in how your car handles. The rotor ring itself is precision-machined with 60 directional slots, designed to help vent gases and dust away from the pad surface. This slotting pattern is crucial for maintaining consistent braking performance, especially during spirited driving or track use, by preventing pad glazing and ensuring a cleaner friction surface.

The GiroDisc rotors are engineered to be a direct replacement for your factory rear rotors on 2014-2020 BMW M2, M3, and M4 models, including those equipped with the factory red, silver, or gold calipers and the Carbon Ceramic Matrix (CCM) braking system. This means installation is straightforward, without the need for modifications. The floating design of the hat allows the rotor ring to expand and contract freely with temperature changes, which helps to prevent rotor warping and cracking over time, contributing to a longer service life. By using these rotors, you're investing in improved braking feel and durability for your high-performance BMW.