A2-186SR - GiroDisc 2-Piece Rotor Assembly; Right
A2-186SL - GiroDisc 2-Piece Rotor Assembly; Light
 
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) 370
Max. thickness (mm) 24
Min. thickness (mm) 22
Standard disc diameter (mm) 370
Suitable for:
- BMW M2 F87
- BMW M3 F80
- BMW M4 F82
Delivery times may vary from 3-5 days for discs in stock to 3 weeks for discs made to order in the US.