GiroDisc two-piece fully floating rear rotors for the BMW M2 / M3 / M4 (G8X), 370mm. A direct replacement for the rear rotors that sheds unsprung weight and rotating mass from the rear axle.
Key Features
- Rotor rings machined from a proprietary high-carbon iron casting formulated to GiroDisc's specifications
- 48 curved vanes act as a centrifugal pump, pulling air in through the hub to cool the rotors under hard use
- Reusable hat can be fitted to new rings (D2-282) when they need replacing
- Hats, rotor rings and drive pins are manufactured in-house at GiroDisc's facility in Bellingham, WA from domestically sourced materials
- Spring clips and Belleville washers give race-ready float with no noise from loose hardware
Specifications
- Outer diameter: 370mm
- Position: Rear
- Construction: Two-piece fully floating
- Hat material: 6061-T6 aluminium, black anodised finish
- Drive pins: High-strength steel alloy, cadmium plated
- Minimum thickness: 22 mm
- Replacement rings: D2-282
