

GiroDisc
GiroDisc
GIRODISC A1-322 Kit Perednikh Halmivnykh Dyskiv For BMW M2 (G87)/M3 (G80)/M4 (G82) (400x38 Mm, Zamina CCB)
GIRODISC A1-322 Front Brake Disc Kit for BMW M2 (G87) / M3 (G80) / M4 (G82) (400x38mm, CCB Replacement)
The GIRODISC A1-322 Front Brake Disc Kit is a direct replacement for the 400mm Carbon Ceramic Brake (CCB) discs on the BMW M2 (G87), M3 (G80), and M4 (G82). The floating, two-piece design is fully compatible with factory CCB calipers, requiring only a switch to pads designed for cast iron rotors, with no additional modifications needed.
The rotor rings are cast from proprietary high-carbon iron, specifically engineered for enhanced wear resistance and thermal stability. Internal ventilation is achieved through 72 curved vanes, creating a powerful airflow for efficient cooling. The hats are machined from 6061-T6 aluminum with a black anodized finish and can be reused when replacing the rotor rings.
All primary components – hats, rings, and drive pins – are manufactured in the USA. High-strength, cadmium-plated steel drive pins, combined with spring clips and Belleville washers, ensure durability, controlled float, and quiet operation, even in daily driving.
Specifications:
- Disc Diameter: 400 mm
- Disc Thickness: 38 mm
- Minimum Thickness: 34 mm
- Material: High-carbon iron (rotor), 6061-T6 aluminum (hat)
- Disc Type: Floating, two-piece
- Ventilation Type: 72 curved vanes
- Finish: Black anodized (hat), Cadmium plated (fasteners)
Benefits
- Direct CCB replacement with full factory caliper compatibility
- Utilizes pads designed for cast iron systems
- Two-piece floating design with reusable hats
- High-carbon iron rings with 72 curved ventilation vanes
- Quiet operation due to spring clips and Belleville washers
Specifications
- Part number
- A1-322

























