A1-276SR – GiroDisc 2-Piece Rotor Assembly; Right
Porsche
911 (992.1) 2019 - Present
- GT3 4.0 2021 - 2023
- GT3 4.0 2023 - 2025
- GT3 RS 4.0 2022 - 2025
911 (992.2) 2019 - Present
- GT3 4.0 2025 - Present
- GT3 RS 4.0 2025 - Present
€1,272.77 Incl. VAT
- Manufacturer: Girodisc
- Material: Cast Iron
- Package Contents: 1x Brake Disc
- A1-276SR – GiroDisc 2-Piece Rotor Assembly; Right 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.
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Girodisc
Girodisc is an American manufacturer of two-piece floating brake rotors founded and based in the United States. The company specialises in high-performance replacement rotor systems designed as direct-fit upgrades to OEM or aftermarket brake calipers, without requiring a complete big brake kit conversion.
Their rotors use an aluminium hat (bell) paired with a separate iron rotor ring, with the two components connected via floating bobbins. This floating design allows the ring to expand thermally without transferring stress to the hat, reducing warping and cracking under sustained track use. The lighter aluminium hat also reduces unsprung weight compared to a solid OEM rotor.
Girodisc rotors are widely used in endurance racing, time attack, and serious track day driving where repeated hard braking cycles generate heat that OEM solid rotors cannot manage reliably. They are a popular choice for drivers who want the thermal performance of a motorsport rotor in a package that bolts directly to their existing caliper.
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Description
A1-276SR – GiroDisc 2-Piece Rotor Assembly; Right 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.
Additional information
| Manufacturer | Girodisc |
|---|---|
| Disc Diameter (mm) | 0, 410 |
| Disc Finish | Curved Slotted |
| Disc Height (mm) | 4, 60 |
| Disc Construction | 2-Piece Floating |
| Disc Side | Right |
| Max Thickness | 0, 36 |
| Min Thickness | 0, 34 |
| Disc Type | Vented |
| Disc Quality | Premium |
| Material | Cast Iron |
| Package Contents | 1x Brake Disc |
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