Girodisc BMW F8X 380mm Rear Rotor Rings
The Girodisc D2-220 Rear Replacement Rotor Rings are designed as direct replacements for Girodisc two-piece rear rotors used on the BMW F8X platform, including the M2, M3, and M4. These 380mm iron rings restore full braking performance and cooling efficiency, maintaining the same lightweight, high-performance design as your existing Girodisc setup.
Restore Track-Level Performance
Each Girodisc D2-220 replacement ring is manufactured in the USA from Girodisc’s proprietary cast iron alloy, chosen for its exceptional thermal stability and consistent friction characteristics. The curved vane internal geometry acts as a centrifugal air pump, drawing cooling air through the rotor to reduce fade and distortion. Sold as a pair, the rings come with a complete new hardware kit and are ready to bolt directly to your Girodisc aluminum hats.
Features
• Size: 380mm x 30mm
• Direct replacement for Girodisc BMW F8X M2 / M3 / M4 rear rotors
• Proprietary cast iron alloy poured and machined in the USA
• Curved vane design for optimal cooling and airflow
• Includes full hardware kit for installation
• Reuses Girodisc aluminum hats
• Maintains factory ABS and brake balance
• Sold/priced per pair
• Not compatible with OEM or other aftermarket hats
Vehicle Fitment
• BMW F80 M3 (All Years) – Rear
• BMW F82 / F83 M4 (All Years) – Rear
• BMW F87 M2 / M2 Competition / M2 CS – Rear
• Compatible with vehicles equipped with Girodisc two-piece rotor systems
• Will not fit OEM or non-Girodisc hats
Girodisc D2-220 BMW F8X 380mm Rear Replacement Rotor Rings FAQs
Can I reuse my existing Girodisc hats? Yes. These replacement rings are designed to bolt directly onto your Girodisc aluminum hats with the supplied hardware.
Are these compatible with OEM or other brands? No. Girodisc replacement rings are engineered exclusively for Girodisc systems and are not compatible with OEM or other aftermarket hats.
What’s included in the kit? Two iron rotor rings (left and right) and a full hardware kit with drive pins, washers, and bolts.
Are the rotors directional? Yes. Each ring features directional curved vanes to ensure proper airflow and cooling efficiency—make sure to install left and right rotors correctly.
Do these perform better than OEM rotors? Yes. Girodisc rotors provide improved cooling, reduced weight, and consistent braking response under repeated heavy use compared to factory one-piece rotors.
Are they sold as a pair? Yes. The Girodisc D2-220 BMW F8X 380mm Rear Replacement Rotor Rings are sold and priced per pair, complete with all necessary installation hardware.
Keep your BMW M2, M3, or M4 braking system performing at its best with Girodisc D2-220 Rear Replacement Rotor Rings—precision-crafted for superior cooling, endurance, and race-ready stopping power.
