GiroDisc Racing Brakes & Technologies
A2-242 Girodisc 2-Piece Rear Brake Rotors – Corvette C8 Z51
$1,569.00
Girodisc Rear Brake Rotors – Corvette C8
The Girodisc A2-242 Rear Rotor Kit is a direct replacement upgrade for the factory C8 Z51 rear brake discs. Designed to bolt directly to the car without modification, these lightweight high-performance rotors deliver better heat management, improved braking consistency, and reduced unsprung weight—all while maintaining the factory brake bias and ABS performance.
Precision-Built Performance for the C8 Z51
The Girodisc A2-242 system replaces the OEM one-piece rotor with a two-piece floating design that improves cooling and reduces rotational mass. The central hat section is CNC-machined from U.S.-sourced 6061-T6 aircraft-grade aluminum, while the rotor rings are cast from Girodisc’s proprietary high-carbon iron alloy. The curved vane internal geometry acts as a centrifugal air pump to cool the discs during aggressive track driving, preventing fade and extending pad life.
Features
• Direct bolt-on replacement for Corvette C8 Z51 rear rotors• Two-piece floating rotor design for improved cooling and serviceability• Proprietary cast-iron rings poured and machined in the USA• Lightweight 6061-T6 aluminum hat reduces unsprung weight• Curved vane internal design for efficient heat dissipation• 10 high-strength alloy steel drive pins with anti-noise spring washers• Cadmium-plated hardware and class 12.9 cap screws• Reusable aluminum hats—only replace rings when worn• Sold/priced per pair
Vehicle Fitment
• Chevrolet Corvette C8 Z51 (All Years) – Rear• Compatible with factory calipers and ABS• Maintains OEM brake balance and fitment
Girodisc A2-242 Rear Rotors – Corvette C8 Z51 FAQs
Do these rotors fit the stock calipers? Yes. The Girodisc A2-242 rotors bolt directly to the OEM calipers with no modifications required.
What are the benefits of a two-piece floating rotor design? The floating mount allows the rotor to expand freely with heat, improving pedal feel, reducing cracking, and extending component life.
Will these rotors affect my ABS or brake bias? No. They’re engineered to maintain the factory bias and ABS tuning while improving overall performance.
Are replacement rings available? Yes. Girodisc offers replacement iron rings so you can reuse your aluminum hats and hardware, lowering long-term maintenance costs.
Do these rotors make noise? The floating hardware uses anti-noise spring washers to eliminate rattling when cold while maintaining full float under heat.
Are these sold individually? No. The Girodisc A2-242 rotors are sold as a matched pair for the rear axle.
Upgrade your Corvette C8 Z51 with the Girodisc A2-242 2-Piece Rear Brake Rotors—precision-engineered for superior cooling, weight reduction, and unmatched stopping performance lap after lap.
GiroDisc Racing Brakes & Technologies
A2-248 Girodisc Rear Rotors for Mercedes E63 / GT53
$2,069.00
Girodisc Rear Rotors – Mercedes E63 / GT53
The Girodisc A2-248 rear rotor set offers a direct-fit upgrade for the Mercedes E63 and GT53 platforms. Combining track-grade engineering with bolt-on simplicity, these two-piece rotors deliver better heat management, consistent brake feel, and reduced rotational weight—while retaining compatibility with OEM calipers and ABS systems.
Purpose-Built for Street and Track Use
Each rotor uses a curved-vane internal geometry to actively draw cooling air through the disc, preventing hotspots under hard braking. The hub is machined from 6061-T6 aluminum while the friction ring is cast from Girodisc’s proprietary iron alloy—machined in-house from start to finish. A floating mount system with drive pins and anti-noise washers allows expansion and self-centering, enhancing consistency and longevity.
Features
• Designed for Mercedes E63 / GT53 rear axle fitment• Two-piece rotor design: lightweight aluminum hub + machined cast-iron ring• Curved-vane internal airflow geometry• Floating mount with alloy steel drive pins and anti-noise washers• Reduced unsprung and rotational mass for sharper response• Repairable design: replace ring, reuse hub and hardware• Sold/priced per pair
Vehicle Fitment
• Mercedes-AMG E63 — rear axle• Mercedes-AMG GT 53 — rear axle• Always confirm rotor diameter, bolt pattern, and caliper clearance before ordering
Girodisc A2-248 Rear Rotors FAQs
Do they bolt to stock calipers? Yes, the A2-248 system is designed for OEM compatibility—no modifications needed.
How does the floating design benefit braking? Float allows the disc to expand and self-center under thermal load, reducing stress and improving pedal consistency.
Are replacement rings available? Yes. When rings wear out, you can replace just the ring while reusing the hub and hardware to save cost.
Is the rotor sold individually or as a pair? The A2-248 kit includes both rear rotors and is sold per pair.
What kind of pads and fluid should I use? To get the most out of these rotors, use a high-temperature brake fluid and performance brake pads; they help manage fade and keep braking consistent over multiple laps.
Choose the Girodisc A2-248 for your Mercedes E63 or GT53 and enjoy advanced braking performance, precision engineering, and long-term serviceability built for the road and track.
GiroDisc Racing Brakes & Technologies
A2-248DS Girodisc Mercedes E63 / GT53 Rear Rotors (Dimpled & Slotted)
$2,211.00
Girodisc Mercedes E63 / GT53 Rear Rotors (Dimpled & Slotted)
The Girodisc A2-248DS Rear Rotors are a direct replacement for the OEM discs on the Mercedes E63 and GT53. These precision-machined, dimpled and slotted rotors deliver superior braking performance, enhanced cooling, and a substantial reduction in weight. Designed to bolt directly to the car with no modifications required, they maintain the factory brake bias and ABS efficiency while improving response and durability.
Performance Upgrade & Weight Reduction
Each Girodisc assembly is engineered to be approximately 8.1 lbs lighter per rotor than the factory units (16.6 lbs vs. 24.7 lbs). This significant reduction in unsprung and rotational mass allows for improved acceleration, sharper turn-in, and better suspension feedback.
Engineering Excellence
The central hat section of the rotor is crafted from 6061-T6 aircraft-grade aluminum, precision-machined and anodized for strength and corrosion resistance. The outer disc is made from Girodisc’s proprietary high-carbon cast iron alloy, poured and machined in the USA to exacting tolerances. The dimpled and slotted surface design improves pad bite, reduces glazing, and enhances gas evacuation during high-temperature operation.
Floating Mount System
Girodisc rotors utilize a fully floating mount system that connects the iron ring to the aluminum hat using 10 cadmium-plated steel drive pins. The assembly is secured by class 12.9 cap screws and hardened washers, allowing axial and radial movement as the rotor expands under heat. Anti-noise spring washers eliminate rattle and vibration, maintaining quiet operation while preserving true race-grade performance.
Vehicle Fitment
Mercedes-Benz E63 AMG (All variants compatible with iron rotor setup)
Mercedes-Benz GT53 (All compatible rear applications)
Technical Specifications
Part Number: A2-248DS
Position: Rear
Design: Dimpled & Slotted
Material: High-carbon cast iron rotor ring with 6061-T6 aluminum hat
Vane Design: Curved directional vanes
Weight Reduction: 8.1 lbs per rotor vs OEM
Sold/Price: Per pair
FAQs for Girodisc A2-248DS
Are these a direct fit? Yes. The Girodisc A2-248DS rotors bolt directly to the OEM hubs and work with the factory calipers—no modifications required.
What’s the benefit of dimpled and slotted rotors? This design enhances pad cleaning, improves initial bite, and reduces brake fade during high-temperature driving.
Do they make noise? Girodisc’s floating design uses anti-noise spring washers for quiet, street-friendly operation while retaining track-ready performance.
Are the rotors rebuildable? Yes. The iron rings are replaceable—simply reuse the aluminum hats and replace the rings when worn.
Upgrade your Mercedes E63 or GT53 with Girodisc dimpled and slotted rear rotors for the perfect balance of lightweight precision, durability, and performance on the road or track.
GiroDisc Racing Brakes & Technologies
A2-250 Girodisc Porsche GT2 RS Clubsport Rear Rotors
$2,846.00
Porsche GT2 RS Clubsport Front Rotors
The Girodisc system is a direct replacement for the OE front rotors on the Porsche GT2 RS Clubsport. Designed and engineered for the most demanding track environments, these lightweight 2-piece floating rotors bolt directly to the car with no modifications required. They maintain OEM brake bias and ABS functionality while delivering superior cooling, reduced fade, and exceptional braking precision under extreme racing conditions.
Motorsport-Grade Design, Precision-Built in the USA
Each Girodisc rotor assembly is meticulously engineered and manufactured in-house using premium materials. The hat is CNC-machined from 6061-T6 aircraft-grade aluminum for strength and reduced weight, while the rotor rings are made from Girodisc’s proprietary high-carbon iron alloy. The 380mm diameter and 32mm thickness provide greater thermal capacity, ensuring consistent performance through repeated high-speed braking events. The floating mount system allows for controlled expansion under heat, eliminating warping and vibration.
Vehicle Fitment
Porsche 911 GT2 RS Clubsport (991.2)
Porsche 935 (991-based, 2019–2021)
Features
Direct OEM Replacement: Installs directly to factory hubs and calipers with no modifications required.
High Thermal Capacity: Large 380x32mm rotor design for superior heat management and fade resistance.
Lightweight Two-Piece Construction: Reduces unsprung and rotational mass for sharper handling and acceleration.
Curved Vane Cooling: Internal directional vanes pump air through the rotor to maintain consistent braking temperatures.
Floating Mount System: Twelve high-strength drive pins secured with anti-noise spring washers allow the rotor to expand under heat while preventing rattle.
Made in the USA: Fully machined and assembled from U.S.-sourced materials to meet professional racing standards.
FAQs – Porsche GT2 RS Clubsport Front Rotors
Are these rotors compatible with OEM calipers? Yes, they bolt directly to the factory Porsche calipers with no modifications required.
Can they be used on the street? While designed for track use, they function flawlessly for limited street driving as well.
Do they improve performance over OEM rotors? Yes—these rotors offer better cooling, reduced fade, and lighter rotational weight for more consistent lap times.
Are they sold as a pair? Yes, all Girodisc rotors are sold and priced per pair.
Upgrade your Porsche GT2 RS Clubsport with Girodisc’s 2-piece floating front rotors. Experience unmatched braking consistency, reduced fade, and the durability demanded by world-class motorsport performance.
GiroDisc Racing Brakes & Technologies
A2-260 Girodisc Mercedes G63 Rear Rotors
$2,568.00
A2-260 Girodisc Mercedes G63 Rear Rotors
The Girodisc A2-260 Rear Rotors are precision-engineered to replace the heavy factory discs on the Mercedes-Benz G63 AMG. Designed as a direct bolt-on upgrade with no modifications required, these 2-piece floating rotors provide exceptional braking performance while shedding significant unsprung and rotational weight. The result is sharper acceleration, improved suspension response, and reduced heat buildup during aggressive driving.
Lightweight, High-Performance Construction
Each rotor features a CNC-machined 6061-T6 aluminum hat paired with Girodisc’s proprietary cast iron outer ring, manufactured in the USA. This combination reduces each rotor’s weight by approximately 8.1 pounds compared to stock (16.6 lbs vs. 24.7 lbs), dramatically improving responsiveness without compromising braking efficiency. The high-carbon iron construction ensures optimal thermal stability and consistent performance under repeated heavy braking.
Advanced Cooling and Floating Design
The rotors incorporate a curved vane design developed from motorsport applications, functioning like a centrifugal pump to force cooling air through the disc. Girodisc’s floating mount system uses 10 cadmium-plated steel drive pins secured with class 12.9 cap screws and hardened washers. This design allows the disc to expand radially under high temperatures without distortion while anti-noise spring washers ensure quiet street operation.
Vehicle Fitment
Mercedes-Benz G63 AMG (all variants with factory iron rotors)
Direct bolt-on replacement for OEM rear rotors
No modifications or additional hardware required
Technical Specifications
CMS Number: A2-260
Position: Rear
Design: 2-piece floating rotor assembly
Material: Proprietary cast iron ring with 6061-T6 aluminum hat
Vane Design: Curved internal vanes for improved cooling
Weight Savings: ~8.1 lbs per rotor
Hardware: Cadmium-plated steel drive pins with anti-noise washers
Rebuildable: Yes — reusable hat with replacement rings
Sold/Price: Per pair
FAQs for Girodisc A2-260
Do these rotors fit without modification? Yes, the Girodisc A2-260 rear rotors bolt directly to the G63 AMG hub and work perfectly with factory calipers.
What benefits do these provide over OEM rotors? They reduce unsprung mass, enhance cooling, and maintain brake balance and ABS efficiency while delivering faster suspension response.
Are these rotors noisy? No. The anti-noise spring washers eliminate rattle while allowing proper float for thermal expansion.
Can the rotor rings be replaced? Yes. Girodisc rotors are fully rebuildable—just replace the rings when worn and reuse the hats and hardware.
Upgrade your Mercedes G63 AMG with Girodisc’s lightweight, rebuildable rear rotors—engineered to deliver superior cooling, reduced weight, and exceptional braking consistency on both road and track.
GiroDisc Racing Brakes & Technologies
A2-260DS Girodisc Dimpled & Slotted Rear Rotors – Mercedes G63
$2,710.00
Girodisc Dimpled & Slotted Rear Rotors
The Girodisc A2-260DS dimpled & slotted rear rotor kit is engineered to deliver superior braking performance for your Mercedes G63. This two-piece rotor set combines race-proven features—floating mount, cooling vanes, and dimpled/slotted disc surface—to manage heat, reduce fade, and maintain dependable pedal feel under the most demanding conditions.
High-Performance Design for Luxury Off-Road Braking
The rotor hat is crafted from U.S.-sourced 6061-T6 aluminum and precisely machined for strength and weight savings. The friction ring is made from Girodisc’s proprietary cast iron, flux poured and fully machined in-house. Its dimpled & slotted surface improves pad bite and gas/heat dissipation, while the curved-vane internal geometry acts like a cooling pump to push air through the rotor during high-speed driving or spirited off-road use.
Features
• Fitment: Mercedes G63 rear axle• Two-piece rotor design: cast iron ring + aluminum hat• Dimpled & slotted rotor face for enhanced pad bite and heat control• Curved-vane internal geometry for active airflow & cooling• Floating mount system with cadmium-plated alloy steel drive pins and anti-noise washers• Class 12.9 hardware for high torque load retention• Reduces unsprung weight and improves braking consistency• Rings are replaceable—reuse hats and hardware when rings wear out• Sold/priced per pair
Vehicle Fitment
• Mercedes-AMG G63 4×4² / G63 AMG (various years) – Rear • Check your rotor diameter and caliper compatibility before order
Girodisc A2-260DS Rear Rotors FAQs
Will these work with OEM calipers? Yes. The Girodisc A2-260DS kit is designed to bolt directly to stock calipers with no modifications.
What is the benefit of dimpled & slotted surfaces? These features help evacuate gases, maintain pad surface contact, and improve initial bite, especially under heavy use.
Why use a floating two-piece design? The floating mount allows thermal growth of the ring without stress, reduces warpage, and helps self-center the rotor between pads.
Are replacement rings available? Yes. Replacement cast iron rings can be purchased—allowing you to keep your original hats and hardware.
Is this kit sold as a pair? Yes. The A2-260DS kit includes two rear rotors, sold as a pair.
What brake pads and fluid should I use? Performance or track-rated pads combined with high-temperature fluid is recommended to fully capitalize on the cooling and consistency advantages of this rotor setup.
Upgrade your Mercedes G63’s braking performance with the precision, cooling capability, and longevity of the Girodisc A2-260DS Dimpled & Slotted Rear Rotors
GiroDisc Racing Brakes & Technologies
A2-264 Girodisc McLaren 620R Rear Rotors
$2,846.00
McLaren 620R Rear Rotors
The Girodisc system is a direct replacement for the OE rear rotors on the McLaren 620R. Designed for uncompromising track and street performance, these lightweight 2-piece floating rotors bolt directly to the car without any modifications. They maintain factory brake bias and ABS calibration while significantly improving heat dissipation, reducing unsprung mass, and enhancing overall braking consistency.
Precision-Engineered for the Ultimate Track Weapon
Built to handle the extreme braking loads of high-performance McLaren applications, Girodisc rotors are fully machined and assembled in the USA using aerospace-grade materials. The rotor hats are CNC-cut from 6061-T6 aluminum and anodized for durability, while the rings are cast from Girodisc’s proprietary high-carbon iron alloy. This advanced metallurgy ensures strength, thermal stability, and smooth pedal modulation even after repeated heat cycles.
Girodisc A2-264 Vehicle Fitment
McLaren 620R (2020+)
McLaren 570S GT4 (rear fitment)
McLaren 600LT (rear conversion fitment, verify caliper clearance)
Features
Direct OEM Replacement: Bolts directly to factory hubs and calipers—no modifications required.
Lightweight Two-Piece Design: Reduces rotational mass and improves suspension response for sharper handling.
Curved Vane Cooling: Directional internal vanes act as a centrifugal pump to move air through the disc and dissipate heat efficiently.
Floating Mount System: Ten high-strength alloy drive pins and anti-noise spring washers allow controlled expansion while eliminating vibration or rattle.
Replaceable Rotor Rings: The aluminum hats are reusable—only replace the iron rotor rings when worn.
Made in the USA: Engineered, cast, and machined at Girodisc’s U.S. facility to motorsport standards.
FAQs – Girodisc A2-264McLaren 620R Rear Rotors
Are these rotors a direct fit for OEM calipers? Yes, they fit perfectly with the factory McLaren 620R calipers and mounting hardware.
Do they improve cooling over stock rotors? Yes, the curved vane design and floating mount system drastically enhance cooling and prevent warping under high stress.
Can they be used with performance pads? Absolutely. They’re compatible with both OEM and aftermarket racing pad compounds.
Are they sold as a pair? Yes, Girodisc rotors are sold and priced per pair.
Upgrade your McLaren 620R’s rear braking performance with Girodisc’s lightweight floating rotors. Built for endurance, precision, and confidence lap after lap—engineered to match the 620R’s race-bred character.
GiroDisc Racing Brakes & Technologies
A2-266 Girodisc 2-Piece Rear Brake Rotors – GT4 Clubsport
$2,496.00
Girodisc 2-Piece Rear Brake Rotors – GT4 Clubsport
The Girodisc A2-266 rear rotor set is a direct, bolt-on replacement for the OE cup car disc on the GT4 Clubsport platform. Using a lightweight aluminum hat and a proprietary cast-iron ring, these two-piece rotors reduce unsprung weight, improve cooling, and deliver repeatable performance under heavy track use while working perfectly with factory calipers and ABS.
Race-bred construction, bolt-on simplicity
Each rotor features a curved-vane internal design that pumps cooling air through the disc, managing temperatures during long stints. The floating mount uses high-strength alloy steel drive pins and anti-noise spring washers to allow axial and radial float, letting the ring expand with heat and self-center between the pads for consistent pedal feel.
Features
• Direct replacement for OE GT4 Clubsport rear discs• Two-piece design: proprietary cast-iron rings with 6061-T6 aluminum hats (U.S. sourced)• Curved-vane internal geometry for superior cooling• Floating drive-pin system with cadmium-plated hardware and class 12.9 cap screws• Anti-noise spring washers minimize rattle while allowing thermal growth• Reduced unsprung and rotational mass for sharper response• Rings are replaceable; reuse hats when the rings wear out• Sold/priced per pair
Vehicle Fitment
• Porsche Cayman GT4 Clubsport (981) – rear• Porsche 718 Cayman GT4 Clubsport (982) – rear• Note: If your car is equipped with OEM center-lock wheels, select the center-lock drive pin option.
Girodisc A2-266 Rear Rotors – GT4 Clubsport FAQs
Do these rotors fit with the stock calipers and ABS? Yes. They bolt on with no modifications and maintain factory brake bias and ABS functionality.
What is the benefit of the two-piece floating design? It reduces weight, improves cooling, and allows the iron ring to expand under heat without coning or cracking, maintaining a consistent pedal with fewer hot spots.
Are replacement rings available? Yes. When the rings are worn, simply replace the cast-iron rings and reuse the aluminum hats and hardware where applicable.
How many drive pins are used? The A2-266 utilizes a high-strength floating system with multiple alloy steel pins and anti-noise spring washers to allow controlled float and quiet operation.
Are these sold individually or as a set? Sold/priced per pair for the rear axle.
What pads and fluid do you recommend? Pairing performance pads with a quality high-temperature fluid completes a reliable track package and helps prevent fade under extended use.
Upgrade the rear brakes on your GT4 Clubsport with Girodisc A2-266 two-piece rotors for lighter weight, cooler running, and confidence-inspiring consistency every session.
GiroDisc Racing Brakes & Technologies
A2-270 Girodisc Dodge Viper TA Rear Rotors
$1,641.00
Girodisc Dodge Viper TA Rear Rotors
The Girodisc A2-270 Rear Rotor Kit is a lightweight, performance-engineered brake upgrade for the Dodge Viper TA. Designed to replace the factory rotors directly with no modifications, these 2-piece, fully floating assemblies deliver improved cooling, reduced unsprung weight, and increased responsiveness under hard braking.
Lightweight 2-Piece Construction
Each Girodisc assembly combines a CNC-machined 6061-T6 aluminum hat with a proprietary high-carbon cast iron rotor ring. The 2-piece floating configuration significantly reduces rotating mass and unsprung weight, resulting in better suspension response, sharper handling, and faster acceleration. These rotors provide superior heat dissipation and a firmer, more consistent brake pedal feel on both street and track.
Race-Proven Floating Mount System
Girodisc’s advanced floating mount system connects the rotor ring and hat using precision-engineered, cadmium-plated steel drive pins. These pins are secured with grade 12.9 cap screws and hardened washers, allowing the rotors to expand and contract under heat while maintaining axial and radial float. Anti-noise spring washers prevent rattle and ensure quiet operation for street driving.
Vehicle Fitment
Dodge Viper TA (Time Attack)
Compatible with OEM calipers and pads
Direct bolt-on installation — no modifications required
Technical Specifications
CMS Number: A2-270
Position: Rear
Design: 2-piece floating rotor
Material: Proprietary cast iron rotor with 6061-T6 aluminum hat
Vane Design: Curved internal vanes for enhanced cooling
Hardware: Cadmium-plated drive pins, class 12.9 screws, anti-noise washers
Rebuildable: Yes — replaceable iron rings, reusable aluminum hats
Sold/Price: Per pair
FAQs for Girodisc A2-270
Are these rotors a direct replacement for my OEM setup? Yes, the Girodisc A2-270 rotors are a direct bolt-on replacement for the factory Viper TA rotors and work perfectly with OEM calipers.
What advantages do Girodisc rotors offer? They provide superior cooling, reduced weight, and improved pedal consistency for both track and street driving.
Can I replace the rings later? Yes, Girodisc rotors are fully rebuildable—simply replace the iron rotor rings when worn and reuse the aluminum hats.
Do these rotors make noise? No. The anti-noise spring washers eliminate rattling while maintaining the benefits of a fully floating rotor system.
Upgrade your Dodge Viper TA with Girodisc A2-270 Rear Rotors to experience track-proven braking performance, reduced weight, and long-term serviceability—all proudly engineered and manufactured in the USA.
GiroDisc Racing Brakes & Technologies
A2-271 Girodisc Chevrolet Camaro SS (6th Gen) Rear Rotors
$1,641.00
Girodisc Chevrolet Camaro SS (6th Gen) Rear Rotors
The Girodisc A2-271 Rear Rotors are a precision-engineered, direct replacement for the OEM discs on the sixth-generation Chevrolet Camaro SS. Designed to enhance braking performance, reduce weight, and improve cooling, these 2-piece floating rotors deliver track-ready reliability and street-friendly refinement—all while retaining factory fitment and ABS function.
Lightweight Construction & Improved Cooling
By upgrading to Girodisc’s two-piece rotor design, you eliminate unnecessary rotational mass. The lightweight 6061-T6 aluminum hat significantly reduces unsprung weight, improving suspension response and acceleration. The cast-iron outer rings are produced from Girodisc’s proprietary high-carbon alloy, featuring curved internal vanes that act as a centrifugal pump to draw cooling air through the rotor—perfect for high-performance driving and track sessions.
Race-Grade Floating Mount System
The rotors utilize a fully floating mount system that connects the rotor ring to the hat via 10 high-strength alloy steel drive pins. Each pin is cadmium-plated for corrosion resistance and secured with class 12.9 cap screws and hardened washers. Girodisc incorporates anti-noise spring washers to allow thermal expansion while maintaining a rattle-free, quiet operation suitable for both street and track use.
Vehicle Fitment
Chevrolet Camaro SS (6th Generation, 2016+)
Compatible with factory rear calipers
No modifications required — direct bolt-on replacement
Technical Specifications
CMS Number: A2-271
Position: Rear
Design: 2-piece floating rotor
Material: High-carbon cast iron ring with 6061-T6 aluminum hat
Vane Design: Curved directional vanes
Hardware: Cadmium-plated steel drive pins, class 12.9 cap screws
Rebuildable: Yes — replace the rotor rings, reuse the hats
Sold/Price: Per pair
FAQs for the Girodisc A2-271
Are these rotors a direct fit? Yes, the Girodisc A2-271 rear rotors are a direct bolt-on replacement using the OEM calipers and hardware—no modifications needed.
Do they improve braking performance? Absolutely. The reduced rotational mass improves throttle response and suspension compliance, while the curved vanes enhance cooling and fade resistance.
Are they noisy? No. The floating hardware design uses anti-noise spring washers to eliminate rattle and vibration during street driving.
Are these rotors rebuildable? Yes. The rotor rings can be replaced independently, allowing cost-effective rebuilds and extended service life.
Upgrade your Chevrolet Camaro SS (6th Gen) with Girodisc’s lightweight, performance-engineered rear rotors for improved stopping power, cooling efficiency, and long-term value.
GiroDisc Racing Brakes & Technologies
A2-272 Girodisc Porsche 992 GT3, 718 GT4 RS Rear Rotors
$2,496.00
A2-272 Girodisc Porsche 992 GT3, 718 GT4 RS Rear Rotors
Direct‑replacement 2‑piece rear rotors for the 992 GT3 (iron brakes) and 718 GT4 RS. Bolt‑on fit with factory calipers and pads; floating design controls heat and mass for consistent performance.
Vehicle Fitment
Porsche 992 GT3 – Rear (OEM iron brake cars)
Porsche 718 Cayman GT4 RS – Rear
Design & Cooling
High‑carbon iron rings with curved vanes improve airflow and heat capacity. 6061‑T6 aluminum hats are reusable; spring‑preloaded hardware manages thermal growth while minimizing noise.
Features
Direct OE replacement; no modifications required
2‑piece floating construction
Reusable hats; ring‑only service
Sold/priced per pair
GiroDisc Racing Brakes & Technologies
A2-278 Girodisc Ferrari Portofino, Roma Rear Iron Rotor Conversion
$2,710.00
Girodisc Ferrari Portofino / Roma Rear Iron Rotor Conversion
The Girodisc A2-278 Rear Iron Rotor Conversion is engineered to replace the factory rear rotors on Ferrari Portofino and Roma models, offering a robust, high-performance iron alternative built for track use and aggressive street driving. This system integrates seamlessly with the OEM brake setup while providing enhanced durability, cooling, and serviceability.
Design & Engineering
Each rotor merges a 6061-T6 aluminum hat with a proprietary high-carbon cast iron ring, produced and polished in-house. This 2-piece floating configuration allows thermal expansion without distortion. The rotor’s 48 curved vanes act as an internal centrifugal pump, pulling air inward from the hub to cool the disc efficiently under repeated demands.
The floating mount system uses cadmium-plated steel drive pins in concert with Belleville washers and spring clips to maintain pad alignment, prevent rattle, and allow precise rotational movement. This ensures quiet operation during street use while retaining full racing capability.
Vehicle Fitment
Ferrari Portofino (non-CCM models)
Ferrari Roma (excluding carbon ceramic brake variants)
Technical Specifications
Part Number: A2-278
Position: Rear
Material: High-carbon cast iron rotor ring with aluminum hat
Vane Count: 48 curved directional vanes
Hardware: Cadmium-plated steel drive pins, Belleville washers, spring clips
Rebuildable: Replace rotor rings while reusing hats and hardware
Sold/Price: Per pair
Advantages
Improved thermal capacity over OEM cast rotors
Reduced replacement cost compared to carbon ceramic systems
Floating design maintains brake consistency and pad centering
Quiet operation with no rattle in street use
Precision-engineered and manufactured in the USA
FAQs for Girodisc A2-278
Does this require modifications? No. It’s a direct fit replacement for non-CCM Portofino and Roma rears.
Is this suitable for track use? Yes. The conversion is designed to handle elevated heat and repeated high-load braking cycles.
Can I replace only the iron rings? Yes. Replacement rotor rings are available for long-term maintenance without replacing the aluminum hats.
Upgrade your Ferrari Portofino or Roma with Girodisc’s rear iron rotor conversion—premium cooling, lower operating cost, and consistent brake performance.
GiroDisc Racing Brakes & Technologies
A2-282 Girodisc BMW G8X M2, M3, M4 370mm Rear Rotors
$1,926.00
Girodisc BMW G8X M2, M3, M4 Rear Rotors
Girodisc A2-282 2-piece rear rotors are a direct bolt-on for G87 M2, G80/G81 M3, and G82/G83 M4 without carbon ceramic brakes. Floating construction reduces unsprung/rotational mass and improves heat management while preserving OE parking brake and ABS.
Vehicle Fitment
BMW G87 M2 (non-CCB) – Rear
BMW G80/G81 M3 (non-CCB) – Rear
BMW G82/G83 M4 (non-CCB) – Rear
Curved-Vane Cooling, Street-Friendly Float
High-carbon rings with 48 curved vanes act as a centrifugal pump to pull air through the disc. Reusable 6061-T6 hats and spring-preloaded hardware control thermal growth and minimize rattle.
Features
Direct OE replacement for 370 mm rear rotors (non-CCB)
2-piece floating design reduces unsprung weight
High-carbon iron rings; reusable aluminum hats
48 curved vanes for effective cooling
Cadmium-plated high-strength drive pins; Belleville washers
Manufactured and assembled in Bellingham, WA
Sold/priced per pair
Girodisc A2-282 FAQs
Minimum service thickness? Replace rear rings at 22 mm or sooner if a crack reaches the edge.
Parking brake compatibility? Fully compatible; hat offset maintains OE parking brake operation.
Which rings match later? D2-282 rear replacement rings.
Any coding or extra parts? No — this is a bolt-on rotor upgrade with OE calipers.
Related Products
D2-282 Girodisc BMW G8X 370mm Rear Replacement Rings
A1-282 Girodisc BMW G8X M2, M3, M4 380mm Front Rotors
D1-282 Girodisc BMW G8X 380mm Front Replacement Rings
GiroDisc Racing Brakes & Technologies
A2-285 Girodisc Ferrari 488 Challenge Evo Rear Iron Rotor Conversion
$2,846.00
Girodisc Ferrari 488 Challenge Evo Rear Iron Rotor Conversion
The Girodisc A2-285 Rear Iron Rotor Conversion is designed as a direct replacement upgrade for the Ferrari 488 Challenge Evo, delivering exceptional braking performance and improved longevity over the OEM carbon ceramic setup. This precision-engineered 2-piece iron rotor system provides the durability, heat tolerance, and serviceability demanded by professional teams and track-day enthusiasts alike.
High-Performance Engineering
Each rotor assembly combines a lightweight 6061-T6 aluminum hat with a high-carbon cast iron ring developed exclusively by Girodisc. This configuration maintains the original brake balance while drastically reducing consumable costs associated with replacing factory carbon rotors. The result is a reliable, high-performing rotor that performs consistently under extreme racing temperatures.
Advanced Cooling and Floating Design
The 48 curved directional vanes inside the rotor act as a centrifugal pump, drawing air through the hub to maximize cooling efficiency and prevent heat-related distortion. Girodisc’s signature floating mount system uses cadmium-plated steel drive pins, secured by class 12.9 cap screws and Belleville washers. This allows the iron ring to expand freely with temperature changes while eliminating rattle and noise.
Vehicle Fitment
Ferrari 488 Challenge Evo (all model years)
Designed as a direct rear iron rotor replacement
Technical Specifications
Part Number: A2-285
Position: Rear
Material: High-carbon cast iron rotor ring with 6061-T6 aluminum hat
Vane Design: 48 curved directional vanes
Hardware: Cadmium-plated high-strength steel drive pins with anti-noise spring washers
Rebuildable Design: Rings replaceable when worn (use Girodisc replacement ring set)
Sold/Price: Per pair
Girodisc A2-285 FAQs
Is this a direct replacement for OEM rotors? Yes. The Girodisc system bolts directly to the Ferrari 488 Challenge Evo with no modifications required.
Can these be used on both street and track? They’re primarily engineered for track and competition use, but they maintain quiet operation suitable for street-driven cars as well.
Are the rings replaceable? Absolutely. Girodisc rotors feature a fully rebuildable design—only the iron rings need replacement when worn.
Why convert to iron rotors? Iron rotors offer consistent performance, lower consumable costs, and greater thermal stability under repeated heavy braking, ideal for endurance or sprint racing.
Upgrade your Ferrari 488 Challenge Evo with Girodisc’s world-class rear iron rotor conversion—trusted by professional racing teams for its precision, performance, and serviceability.
GiroDisc Racing Brakes & Technologies
A2-287 Girodisc Porsche 992 GT3 Cup Rear Rotors
$2,496.00
Girodisc Porsche 992 GT3 Cup Rear Rotors
These Girodisc A2-287 2-piece rear rotors match the front A1-287 kit for the Porsche 992 GT3 Cup iron-brake configuration. Floating assemblies reduce unsprung mass and maintain factory braking balance.
A2-287 Vehicle Fitment
Porsche 992 GT3 Cup – Rear (iron brakes)
Durable Rings & Floating Hardware
High‑carbon iron rings with curved vanes improve thermal stability and airflow. Reusable aluminum hats and spring‑preloaded hardware provide controlled float with street‑friendly noise characteristics.
Features
Direct bolt‑on; uses OEM calipers
2‑piece floating construction
6061‑T6 hats; cadmium‑plated hardware
Manufactured and assembled in Bellingham, WA
Sold/priced per pair
GiroDisc Racing Brakes & Technologies
A2-302 Girodisc Lamborghini Huracán STO Rear Iron Rotor Conversion
$2,846.00
A2-302 Girodisc Lamborghini Huracán STO Rear Iron Rotor Conversion
These Girodisc A2-302 2-piece rotors directly replace the factory carbon-ceramic rears on the Huracán STO. They retain the OEM calipers; pad shape is unchanged, but use an iron-appropriate compound.
Vehicle Fitment
2021+ Lamborghini Huracán STO (rear, CCB-equipped)
Curved-Vane Cooling
High-carbon iron rings with 48 curved vanes act as a centrifugal pump to move cooling air through the disc. Spring-preloaded hardware allows thermal growth without rattle.
Girodisc A2-302 Features
Direct CCB-to-iron conversion; OEM calipers retained
2-piece floating construction reduces unsprung/rotational mass
Reusable 6061-T6 aluminum hats; cadmium-plated pins
Manufactured and assembled in Bellingham, WA
Sold/priced per pair
FAQs
Which pads do I need? Same rear pad shape as OEM, but choose an iron-rotor compound.
Minimum thickness? Replace rear rings at 26 mm or sooner if a crack reaches the edge.
Any changes to parking brake? No — dimensions maintain OEM parking brake function.
Related Products
D2-302 Girodisc Lamborghini Huracán STO Rear Replacement Rings
A1-302 Girodisc Lamborghini Huracán STO Front Iron Rotor Conversion
D1-302 Girodisc Lamborghini Huracán STO Front Replacement Rings
