Girodisc A2-220 Two Piece Floating Rear Racing Brake Rotors

Girodisc Rotors to Replace the Rear Rotors on the Following Cars:

• BMW F80 M3 including CS with optional carbon ceramic brake package (gold calipers)
• BMW F82 M4 including CS with optional carbon ceramic brake package (gold calipers)
• BMW F87 M2, M2 Competition & M2 CS with red or silver calipers
• BMW F87 M2 CS with optional carbon ceramic brake package (gold calipers)

High Performance Brake Rotors to Replace Your Fragile BMW Rotors

Whether you have a BMW M2 with red or silver calipers and drilled rotors or a BMW M2, M3, or M4 with gold calipers and the OEM CCB, this Girodisc floating iron rotor system is a direct replacement for your BMW rear rotors. No modifications to your car are necessary. The 380mm diameter rotors will bolt directly to your BMW and work with the original red, silver, or gold calipers (depending on your model) perfectly. By upgrading your BMW CCB brakes with lightweight high performance iron replacements, your factory bias is maintained as well as your ABS efficiency.

The central hat section of the Girodisc rotor is made from strictly U.S. sourced 6061-T6 aircraft specification aluminum. The disc is made from Girodisc's proprietary American-made cast iron and machined from start to finish in house at Girodisc. The disc utilizes a curved vane design, developed in racing to act as a centrifugal pump forcing cooling air through the disc.

The disc and hat are joined by a floating mount system using 12 high-strength alloy steel drive pins manufactured by Girodisc in the USA and cadmium plated for long-lasting corrosion resistance. The drive pins bear the braking load while maintaining the axial and radial float between the hat and disc. The pins are secured by class 12.9 cap screws with hardened washers. In order to keep the rotors from making noise when cold, the pins are mounted with anti-noise spring washers on the rotor side, allowing the rotor to grow with heat expansion while eliminating the rattle typically associated with floating rotors. A floating rotor will also self-center between the pads.

Once your Girodisc system is in place, you can simply replace the cast iron discs as needed.

Sold/priced per pair.