Girodisc Rear Brake Rotors – BMW F8X M2 / M3 / M4
The Girodisc A2-220 Rear Rotor Kit is a direct replacement for factory carbon ceramic or iron rotors on the BMW F8X platform, including the M2, M3, and M4. Designed for drivers who demand superior thermal control and serviceability, these 380mm two-piece rotors deliver exceptional braking consistency, reduced weight, and race-proven reliability—without any modifications required.
Convert Carbon Ceramic to Iron with OEM Precision
For vehicles originally equipped with BMW’s carbon ceramic rotors, this Girodisc kit offers a straightforward conversion to high-performance iron rotors. The system bolts directly to the car using the factory calipers and hardware, maintaining OEM brake bias and ABS calibration. Girodisc’s curved-vane design and floating mount system ensure cooler operation, quieter performance, and reduced maintenance costs compared to carbon ceramics.
Features
• Direct replacement for 380mm BMW F8X M2 / M3 / M4 rear rotors
• Converts carbon ceramic brakes to iron rotors with no modifications
• Two-piece floating design: 6061-T6 aluminum hat + proprietary cast-iron ring
• Curved-vane geometry for superior heat dissipation
• Floating mount system with cadmium-plated drive pins and anti-noise spring washers
• Class 12.9 hardware for high torque load capacity
• Reusable aluminum hats – replace iron rings when worn
• Reduced unsprung and rotational mass for improved handling
• Sold/priced per pair
Vehicle Fitment
• BMW F80 M3 / F82–F83 M4 (including CS with optional carbon ceramic package – gold calipers)
• BMW F87 M2 / M2 Competition (red or silver calipers)
• BMW F87 M2 CS (optional carbon ceramic package – gold calipers)
• Note: Vehicles with blue calipers require a different rotor size, available separately.
Girodisc A2-220 Rear Rotors – BMW F8X M2 / M3 / M4 FAQs
Do these rotors fit OEM calipers? Yes. The A2-220 rotors bolt directly to factory calipers and hubs with no modifications needed.
Can I use these to replace carbon ceramic rotors? Absolutely. This kit is designed to replace OEM carbon ceramics with Girodisc’s high-performance iron rotors. It’s a simple bolt-on conversion that reduces cost and improves heat capacity.
Do I need to change brake pads? Yes. When converting from carbon ceramic to iron rotors, use pads specifically designed for iron discs to ensure proper friction and performance.
What are the benefits of a two-piece floating design? The floating mount system allows for thermal expansion without warping or cracking, maintaining smooth, consistent braking and extending rotor life.
Are replacement rings available? Yes. Girodisc offers replacement cast-iron rings that allow you to reuse your aluminum hats and hardware, reducing long-term cost.
Are these rotors noisy? No. Anti-noise spring washers prevent rattling when cold while allowing proper float when hot.
Upgrade your braking performance and reduce long-term maintenance costs with the Girodisc A2-220 2-Piece Rear Brake Rotors (380mm)—precision-engineered for BMW’s F8X M2, M3, and M4 platforms.
