A1-220SR - GiroDisc 2-Piece Rotor Assembly; Right
A1-220SL - GiroDisc 2-Piece Rotor Assembly; Left


The GiroDisc 2-piece rotor system is a direct replacement for the OE rotor, no modifications are necessary. The disc will bolt directly to the car and work with OE calipers perfectly. Once the Girodisc system is in place, simply replace the cast iron rotor ring when needed. The average Girodisc 2-piece rotor is approx 2kg lighter per rotor then the stock units. This reduction in rotational and unsprung weight allows for quicker acceleration and suspension response.
 
Package contents 2 x Brake discs
Position: Front right + left
Material: Cast iron
Manufacturer: Girodisc
Diameter (mm) 400
Max. thickness (mm) 36
Min. thickness (mm) 34
Standard disc diameter (mm) 400
 
Suitable for:
- BMW M2 F87 Competition
- BMW M2 F87 CS
- BMW M3 F80 con impianto frenante OEM carboceramico
- BMW M4 F82 con impianto frenante OEM carboceramico
 
Delivery times can vary from 3/5 days for discs in stock to 3 weeks for discs made on back order in the US