GIRODISC A2-224SL Rear Left Brake Disc for ALFA ROMEO Giulia Quadrifoglio / Stelvio Quadrifoglio / MASERATI MC20

Description GIRODISC A2-224SL Rear Left Brake Disc for ALFA ROMEO Giulia Quadrifoglio / Stelvio Quadrifoglio / MASERATI MC20

The GIRODISC A2-224SL left right brake disc is a direct replacement for the OEM rotor, designed for Alfa Romeo Giulia Quadrifoglio, Stelvio Quadrifoglio, and Maserati MC20. No modifications are required — the disc bolts directly to the vehicle and is fully compatible with factory calipers. The central hat is manufactured from 6061-T6 aircraft-grade aluminum sourced in the USA, while the disc itself is cast from Girodisc’s proprietary iron alloy, ensuring superior thermal performance and durability. Its curved vane design acts as a centrifugal pump, drawing cooling air through the disc for enhanced heat dissipation during demanding driving.

The floating two-piece construction employs ten high-strength alloy steel drive pins, cadmium-plated for long-term corrosion resistance. These pins absorb braking loads while maintaining precise axial and radial float between the disc and hat. To suppress noise, anti-rattle spring washers are used, allowing for thermal expansion without vibration or clatter. Once installed, future maintenance only requires replacing the cast iron rotor ring, offering cost efficiency and longevity.

• Direct OEM replacement with no modifications required
• Floating two-piece construction with aluminum hat and cast iron disc
• Curved vane design promotes superior cooling efficiency
• Cadmium-plated drive pins ensure corrosion resistance and quiet operation
• Rotor ring replaceable independently for long-term serviceability

Specifications:

• Disc Diameter: 350.0 mm
• Disc Height: 43.2 mm
• Max Thickness: 28.0 mm
• Min Thickness: 26.0 mm
• Disc Construction: 2-Piece Floating
• Material: Cast Iron