GiroDisc Racing Brakes & Technologies
D2-078 Girodisc Alfa Romeo 4C Rear Replacement Rings
$630.00
Girodisc Alfa Romeo 4C Rear Rings
Restore the razor-sharp braking feel of your Alfa Romeo 4C with Girodisc D2-078 rear replacement rings. Designed as direct replacements for Girodisc two-piece rotors, these 305mm rings bolt to your existing Girodisc aluminum hats using the included floating hardware kit. Refresh the wear surface without replacing the full rotor assembly, maintaining performance and reducing long-term maintenance costs.
Vehicle Fitment
Compatible with:• Alfa Romeo 4C Coupe (rear)• Alfa Romeo 4C Spider (rear)Note: For vehicles equipped with Girodisc 305mm two-piece rear rotor systems. Not compatible with OEM or carbon-ceramic rotors.
Features
• Sold as a left/right pair with new floating hardware kit• Direct replacements for Girodisc 305mm two-piece rear rotors• CNC-machined from proprietary high-carbon cast iron• Directional curved vanes enhance airflow and reduce heat buildup• Maintains factory brake balance and ABS calibration• Designed exclusively for Girodisc aluminum hats – not compatible with OEM or other brands
Specifications
• Diameter: 305mm• Position: Rear• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rings and hardware kit• Sold/priced per pair• MSRP: $630.00
Girodisc D2-078 Alfa Romeo 4C Rear Replacement Ring FAQs
Are these compatible with the OEM Alfa Romeo 4C brake setup? No. These are designed only for Girodisc two-piece rotor hats and will not fit factory one-piece rotors.
Will these work with upgraded street or track pads? Yes. They’re compatible with all major pad brands including Ferodo, Pagid, and Hawk for both street and track driving.
Do these require any modifications for installation? None. They bolt directly to your existing Girodisc aluminum hats using the included floating hardware.
What’s the benefit of Girodisc over the OEM steel rotors? Girodisc’s two-piece floating design reduces unsprung weight, improves cooling, and maintains consistent braking under high temperatures.
Enhance your Alfa Romeo 4C’s braking system with Girodisc D2-078 305mm rear replacement rings — precision-engineered for lightweight performance, cooling efficiency, and track-ready reliability.
GiroDisc Racing Brakes & Technologies
D2-081 Girodisc Ford S197 Mustang Rear Replacement Rings
$580.00
Girodisc Ford S197 Mustang Rear Rings
Refresh your Mustang’s braking system with Girodisc D2-081 rear replacement rings. Designed for the 328mm Girodisc two-piece rotor setup, these direct-fit rings bolt onto your existing Girodisc aluminum hats using the included floating hardware kit. Replace only the wear surface to maintain lightweight performance and save on long-term maintenance costs.
Vehicle Fitment
Compatible with:• Ford Mustang GT (S197, 2005–2014, rear)• Ford Mustang Boss 302 (2012–2013, rear)• Ford Mustang Shelby GT500 (2007–2014, rear)Note: For use with Girodisc 328mm two-piece rear rotor systems only. Not compatible with OEM one-piece or carbon-ceramic rotors.
Features
• Sold as a left/right pair and includes full hardware kit• Direct replacements for Girodisc 328mm two-piece rear rotors• CNC-machined from proprietary high-carbon cast iron• Curved directional vanes enhance airflow and reduce fade• Maintains OEM brake bias and ABS calibration• Designed exclusively for Girodisc aluminum hats – not compatible with OEM or other brands
Specifications
• Diameter: 328mm• Position: Rear• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rings and full hardware kit• Sold/priced per pair
Girodisc D2-081 Mustang Rear Replacement Ring FAQs
Can I use these with factory Ford rotors or hats? No. The D2-081 rings are designed exclusively for Girodisc two-piece rotor systems and won’t fit OEM rotors or hats.
Are these compatible with street and track pads? Yes. They work with all major pad brands, including Hawk, Ferodo, and G-LOC, for both street and track applications.
How often should I replace Girodisc rings? Replacement frequency depends on driving style — typically every 3–5 track weekends or 20,000–30,000 street miles under spirited use.
Do I need special torque specs when installing? Yes. Always follow Girodisc’s torque and Loctite specs for the included hardware to ensure proper float and long-term reliability.
Upgrade your Ford Mustang’s braking performance with Girodisc D2-081 328mm rear replacement rings — engineered for strength, cooling, and consistent pedal feel on both the street and the track.
GiroDisc Racing Brakes & Technologies
D2-091 Girodisc Ford S197 Mustang GT500 ('13–'14) Rear Replacement Rings
$730.00
Ford S197 Mustang GT500 ('13–'14) Rear Replacement Rings
Refresh the stopping power on your 2013–2014 Shelby GT500 with Girodisc Rear Replacement Rings. These direct-fit rings let you reuse your existing Girodisc aluminum hats, restoring like-new braking performance while keeping costs and downtime low. Each pair arrives with new hardware and clear instructions for a clean swap.
Engineered to run hard and cool
Girodisc rings are machined in the USA from proprietary cast iron and use a race-developed curved vane design that pumps cooling air through the disc. The result is consistent pedal feel and fade resistance whether you’re carving back roads or running open-track sessions.
Features
Sold as a pair; includes new replacement hardware
Direct replacement for existing Girodisc two-piece rear rotors
Reuse your Girodisc aluminum hats to save money and time
Proprietary U.S.-poured cast iron for durability and heat control
Curved vane internal design promotes efficient cooling
Precision machined and finished in the USA
Vehicle Fitment
2013–2014 Ford Mustang Shelby GT500 (S197 chassis) equipped with Girodisc two-piece rear rotors
Ford S197 Mustang GT500 ('13–'14) Rear Replacement Rings FAQs:
Do these fit OEM or other brands’ two-piece rotors? These rings are designed only for Girodisc hats and will not fit OEM two-piece systems or other aftermarket brands unless specifically noted.
What’s included in the box? Two replacement rings with new hardware and installation instructions. You’ll reuse your existing Girodisc aluminum hats.
When should I replace my rings? Replace when the rotor reaches minimum thickness or if you see heat checking, cracks, or other signs of distress during inspection.
Do I need to replace both sides at once? Yes, replacing rings in pairs keeps braking performance balanced side-to-side.
Can I install these at home? Experienced DIYers can perform the swap, but professional installation is recommended to ensure correct fastener torque and safety.
Do I need new pads? It’s a good time to inspect pads; switching to a compound matched for iron rotors can optimize bite and wear.
GiroDisc Racing Brakes & Technologies
D2-100 Girodisc Audi B7 RS4 Rear Replacement Rings
$680.00
Girodisc Audi B7 RS4 Rear Rings
Refresh your Audi B7 RS4’s braking system with Girodisc D2-100 324mm rear replacement rings. These direct-fit rings are engineered to bolt directly onto your existing Girodisc aluminum hats, allowing you to replace only the wear surface instead of the full rotor assembly. Each kit includes both left and right rings along with all new floating hardware for an easy, complete installation.
Vehicle Fitment
Compatible with:• Audi B7 RS4 (2007–2008, rear)Note: Designed for Girodisc 324mm two-piece rear rotor systems. Not compatible with OEM or carbon-ceramic rotors.
Features
• Sold as a left/right pair with new floating hardware kit• Direct replacements for Girodisc 324mm two-piece rear rotors• High-carbon cast iron construction improves heat management and durability• Curved directional vanes enhance airflow and reduce fade• Maintains OEM brake bias and ABS calibration• Designed exclusively for Girodisc aluminum hats – not compatible with OEM or other brands
Specifications
• Diameter: 324mm• Position: Rear• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rings and hardware kit• Sold/priced per pair
Girodisc D2-100 Audi RS4 Rear Replacement Ring FAQs
Do these rings work with the factory Audi RS4 brake pads? Yes, the Girodisc D2-100 rings are fully compatible with factory RS4 pad compounds as well as popular track options from Pagid, Ferodo, and Hawk.
How should I bed the new Girodisc rings after installation? Perform 8–10 moderate stops from 60 mph to 10 mph, allowing the brakes to cool between runs. This evenly transfers pad material and prevents uneven deposits.
Are these rings suitable for track use? Absolutely. The high-carbon alloy and floating design provide consistent performance under repeated high-temperature braking.
Can these rotors be resurfaced or turned? No. Due to the directional vane design and strict tolerances, resurfacing is not recommended — replacement rings are the correct service method.
Upgrade your Audi B7 RS4 braking system with Girodisc D2-100 324mm rear replacement rings — precision-engineered for cooling, durability, and consistent braking performance on street or track.
GiroDisc Racing Brakes & Technologies
D2-102 Girodisc Ferrari F430 Challenge Rear Replacement Rings
$880.00
Girodisc Ferrari F430 Challenge Rear Replacement Rings
Maintain the precision braking performance of your Ferrari F430 Challenge with Girodisc rear replacement rings. These high-carbon iron friction rings are direct replacements for your existing Girodisc two-piece rotor assemblies, designed to restore original stopping power and fade resistance for both track and competition use.
Vehicle Fitment
Compatible with:• Ferrari F430 ChallengeNote: These are replacement friction rings only. They mount directly to existing Girodisc aluminum hats using the included hardware kit.
Track-Proven Durability
The Girodisc D2-102 rings are precision-machined from a proprietary high-carbon iron alloy, offering improved heat dissipation, stable coefficient of friction, and excellent crack resistance under repeated hard braking. The curved vane design acts as a centrifugal air pump, keeping your brakes cooler and more consistent during extended lapping or endurance events. Manufactured and balanced in the USA, Girodisc replacement rings ensure long-term performance and serviceability for your F430 Challenge.
Features
• Direct replacement for Girodisc rear rotor assemblies• High-carbon cast iron ensures consistent performance under heat• Curved vane internal design promotes efficient cooling• Includes complete hardware kit for reassembly• Designed for Girodisc aluminum hats only• Machined and finished in the USA• Sold/priced per pair
Specifications
• Application: Rear axle• Vehicle: Ferrari F430 Challenge• Material: High-carbon cast iron• Includes new hardware• Made in the USA• Sold/priced per pair
Girodisc D2-102 Replacement Ring FAQs
Are these compatible with the standard Ferrari F430? No. These replacement rings are engineered for the F430 Challenge application and are not compatible with standard F430 street car brake systems.
Do these rings include new hardware? Yes, each set includes new drive pins, washers, and fasteners required for proper assembly to your existing Girodisc hats.
Do I need to replace the aluminum hats? Not unless they are damaged or worn. The Girodisc two-piece design allows the hats to be reused with new rings, reducing long-term maintenance cost.
Can these be used for endurance racing? Absolutely. Girodisc components are designed for demanding track environments and offer proven reliability in high-temperature racing conditions.
Restore factory-level braking precision to your Ferrari F430 Challenge with Girodisc D2-102 rear replacement rings — precision-crafted for performance, consistency, and long-term serviceability.
GiroDisc Racing Brakes & Technologies
D2-102 Girodisc Rear Replacement Rotor Rings (Garage Sale)
$660.66
$880.00
D2-102 Girodisc Rear Replacement Rotor Rings (Discontinued Rotor Design)
Discontinued Rotor Design, Final Sale, No Returns or Excahanges
FITS: FERRARI 430 CHALLENGE
REPLACEMENT ROTOR DISC ONLY, DOES NOT INCLUDE ALUMINUM HAT.
Competition Motorsport is an Authorized dealer for GiroDisc products and we are one of the largest stocking dealers in the country. We ship most products same or next business day to ensure we meet your delivery deadline.
The GiroDisc replacement rotor system is a direct rotor disc replacement for the Giro Disc 2-piece hat and rotor and no modifications are necessary.
The rotor and hat mount together through a floating mount system which utilizes 8-10 high strength alloy steel drive pins manufactured by GiroDisc in the USA to our own specifications and are cadmium plated for corrosion resistance. The alloy drive pins transfer the load from the brake action while maintaining the axial and radial float between the disc rotor and hat. The pins are secured by grade12 cap screws with hardened washers and mounted with anti-noise spring washers to allow for heat expansion while eliminating the rattle and noise associated with floating rotors.
The 2-piece GiroDisc design allows for rotor only replacement to minimize replacement costs and deliver outstanding performance and cooling.
Sold/Priced per pair.
GiroDisc Racing Brakes & Technologies
D2-103 Girodisc Porsche 993 Rear Replacement Rings
$880.00
Girodisc Porsche 993 Rear Rings
Restore your Porsche 993’s braking performance with Girodisc D2-103 rear replacement rings. These precision-engineered 322mm rings are designed to bolt directly onto your existing Girodisc aluminum hats, providing a cost-effective refresh of your two-piece rotor system. Each set includes both left and right rings plus all necessary new floating hardware for a secure, factory-quality installation.
Vehicle Fitment
Compatible with:• Porsche 993 Carrera / Carrera S• Porsche 993 Turbo• Porsche 993 Carrera 4 / 4SNote: For use with Girodisc 322mm two-piece rear rotor systems. Not compatible with OEM or carbon-ceramic rotors.
Features
• Sold as a left/right pair and includes new floating hardware kit• Direct replacements for Girodisc 322mm two-piece rear rotors• CNC-machined from proprietary high-carbon cast iron• Curved directional vanes improve cooling and reduce fade• Maintains OEM brake balance and ABS function• Designed exclusively for Girodisc aluminum hats – not compatible with OEM or other brands
Specifications
• Diameter: 322mm• Position: Rear• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rings and complete hardware kit• Sold/priced per pair
Girodisc D2-103 Replacement Ring FAQs
Will these fit factory Porsche rotors? No. These are designed specifically for Girodisc two-piece rotor systems and will not bolt to factory or PCCB rotors.
Are both sides included? Yes. Each D2-103 kit includes both left and right replacement rings with all new hardware.
Why replace only the rings? Replacing just the rings allows you to reuse your Girodisc hats, saving cost and maintaining peak braking performance.
Do I need to install the new hardware? Yes. Always use the supplied new hardware for proper torque, safety, and fitment accuracy.
Upgrade your Porsche 993 braking system with Girodisc D2-103 rear replacement rings — precision-built for cooling, strength, and consistent braking performance on both road and track.
GiroDisc Racing Brakes & Technologies
D2-110 Girodisc Ferrari 360 CS, F430, and Scuderia Rear Replacement Rings
$880.00
Girodisc Ferrari 360 CS, F430, Scuderia Rear Replacement Rings
The Girodisc D2-110 rear replacement rings are precision-engineered for Ferrari 360 Challenge Stradale, F430, and F430 Scuderia models equipped with Girodisc two-piece rotors. These 330mm rings bolt directly to your existing Girodisc aluminum hats using the supplied floating hardware kit, allowing you to replace only the wear surface while retaining your high-quality Girodisc hats. Designed for performance and durability, they restore braking confidence on both street and track.
Vehicle Fitment
Compatible with:• Ferrari 360 Challenge Stradale (rear)• Ferrari F430 (rear)• Ferrari F430 Scuderia (rear)Note: For vehicles equipped with Girodisc 330mm two-piece rear rotor systems. Not compatible with OEM carbon-ceramic or steel rotors.
Features
• Sold as a left/right pair and includes new floating hardware kit• Direct replacements for Girodisc 330mm two-piece rear rotors• High-carbon cast iron construction for excellent thermal stability• Curved directional vanes enhance cooling and reduce fade• Maintains OEM brake bias and ABS function• Designed exclusively for Girodisc aluminum hats – not compatible with OEM or other brands
Specifications
• Diameter: 330mm• Position: Rear• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rings and full hardware kit• Sold/priced per pair
Girodisc D2-110 Replacement Ring FAQs
Will these fit OEM Ferrari rotors? No. These are designed specifically for Girodisc two-piece rotor systems and will not bolt to factory rotor assemblies.
Are both sides included? Yes. The D2-110 kit includes both left and right replacement rings along with a complete hardware kit.
Why replace just the rings instead of the full rotor? Replacing only the rings saves cost, preserves your Girodisc hats, and maintains balanced braking performance.
Do I need to install the new hardware? Yes. Always use the supplied new hardware to ensure correct fitment, torque, and long-term reliability.
Upgrade your Ferrari’s braking system with Girodisc D2-110 rear replacement rings — engineered for precision, cooling, and fade-free performance worthy of the 360 CS, F430, and Scuderia.
GiroDisc Racing Brakes & Technologies
D2-111 Girodisc Replacement Rear Rotor Rings | Ferrari 488 & 458
$880.00
D1-111 Girodisc Rear Replacement Rotor Rings
FITS: FERRARI 458 ITALIA and 488 GTB
REPLACEMENT ROTOR DISC ONLY, DOES NOT INCLUDE ALUMINUM HAT.
Competition Motorsport is an authorized dealer for Girodisc products and we are one of the largest stocking dealers in the country. We ship most products same or next business day to ensure we meet your delivery deadline.
The Girodisc replacement rotor system is a direct rotor disc replacement for the Girodisc 2-piece hat and rotor and no modifications are necessary.
The rotor and hat mount together through a floating mount system which utilizes 8-10 high strength alloy steel drive pins manufactured by Girodisc in the USA to their own specifications and are cadmium plated for corrosion resistance. The alloy drive pins transfer the load from heavy braking while maintaining the axial and radial float between the disc rotor and hat. The pins are secured by grade12 cap screws with hardened washers and mounted with anti-noise spring washers to allow for heat expansion while eliminating the rattle and noise associated with floating rotors.
The 2-piece Girodisc design allows for rotor only replacement to minimize replacement costs and deliver outstanding performance and cooling.
Sold/Priced per pair.
GiroDisc Racing Brakes & Technologies
D2-114 Girodisc BMW E9X 335i Rear Replacement Rings
$680.00
Girodisc BMW E9X 335i Rear Rings
Maintain the precise braking feel of your BMW 335i with Girodisc D2-114 rear replacement rings. These direct-fit 328mm rings are designed to bolt onto your existing Girodisc aluminum hats, letting you replace only the rotor surface instead of the full assembly. Each set includes both left and right rings plus a complete floating hardware kit, restoring your braking performance to factory-fresh condition.
Vehicle Fitment
Compatible with:• BMW 335i / 335is (E90 / E92 / E93 chassis)• BMW 335d (E90 chassis)Note: For vehicles equipped with Girodisc 328mm two-piece rear rotor systems. Not compatible with OEM or carbon-ceramic rotors.
Features
• Sold as a left/right pair with new hardware kit• Direct replacements for Girodisc 328mm two-piece rear rotors• CNC-machined from high-carbon cast iron for improved heat capacity• Directional curved vanes enhance cooling efficiency• Maintains OEM brake bias and ABS function• Designed exclusively for Girodisc aluminum hats – not compatible with OEM or other brands
Specifications
• Diameter: 328mm• Position: Rear• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rings and hardware kit• Sold/priced per pair• MSRP: $680.00
Girodisc D2-114 Replacement Ring FAQs
Will these fit OEM BMW rotors? No. These are designed specifically for Girodisc two-piece rotor systems and will not bolt to factory rotors.
Are both sides included? Yes. Each D2-114 kit includes both left and right replacement rings plus a complete hardware set.
Why replace only the rings? Replacing just the rings saves cost and retains your Girodisc hats, providing consistent braking and reduced unsprung weight.
Do I need to replace the hardware? Yes. Always use the supplied new hardware to ensure safe and precise installation.
Upgrade your BMW E9X 335i braking system with Girodisc D2-114 rear replacement rings — precision-engineered for thermal efficiency, strength, and fade-free performance on both street and track.
GiroDisc Racing Brakes & Technologies
D2-119 Girodisc Lamborghini Aventador Rear Replacement Rings
$1,050.00
Girodisc Lamborghini Aventador Rear Replacement Rings
Refresh the braking power of your Lamborghini Aventador with Girodisc D2-119 380mm rear replacement rings. These high-performance rings are designed as direct replacements for Girodisc two-piece rotors, attaching seamlessly to your existing Girodisc aluminum hats with the included floating hardware kit. Replace only the wear surface while retaining your precision-machined hats for consistent braking performance and reduced operating costs.
Vehicle Fitment
Compatible with:• Lamborghini Aventador LP700-4 (rear)• Lamborghini Aventador S (rear)• Lamborghini Aventador SV / SVJ (rear)Note: For vehicles equipped with Girodisc 380mm two-piece rear rotor systems. Not compatible with OEM or carbon-ceramic rotors.
Features
• Sold as a left/right pair and includes full hardware kit• Direct replacements for Girodisc 380mm two-piece rear rotors• CNC-machined from proprietary high-carbon cast iron• Directional curved vanes optimize airflow for improved cooling• Maintains OEM brake bias and ABS calibration• Designed exclusively for Girodisc aluminum hats – not compatible with OEM or other brands
Specifications
• Diameter: 380mm• Position: Rear• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rings and full hardware kit• Sold/priced per pair
Girodisc D2-119 Replacement Ring FAQs
Will these fit OEM Lamborghini rotors? No. These are designed for Girodisc two-piece rotor systems only and are not compatible with factory carbon-ceramic or steel rotors.
Are both sides included? Yes. Each D2-119 kit includes both left and right replacement rings with a complete hardware kit.
Why replace just the rings instead of the entire rotor? Replacing only the rings retains your Girodisc hats, saves cost, and restores braking performance without the need for a full rotor assembly.
Do I need to use the new hardware? Yes. Always use the included new hardware to ensure proper fitment, torque, and safety.
Upgrade your Lamborghini Aventador braking system with Girodisc D2-119 380mm rear replacement rings — engineered for precision, heat control, and fade-free braking performance on both street and track.
GiroDisc Racing Brakes & Technologies
D2-123 Girodisc Mercedes 360mm Rear Replacement Rings
$880.00
Girodisc Mercedes Rear Replacement Rings
Maintain the stopping power of your Mercedes AMG with Girodisc D2-123 360mm rear replacement rings. These precision-machined rings are designed to bolt directly to your existing Girodisc two-piece rotor hats using the included floating hardware kit, allowing you to refresh the wear surface without replacing the full assembly. Perfect for both street and track use, these rings restore braking consistency and thermal performance.
Vehicle Fitment
Compatible with:• Mercedes-Benz C63 AMG (W204 / W205 chassis)• Mercedes-Benz E63 AMG (W212 / W213 chassis)• Mercedes-Benz CLS63 AMG (C218 chassis)• Mercedes-Benz S63 AMG (W222 chassis, steel rotor applications)Note: For use with Girodisc 360mm two-piece rear rotor systems only. Not compatible with OEM or carbon-ceramic rotors.
Features
• Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 360mm two-piece rear rotors• CNC-machined from high-carbon cast iron for strength and heat control• Directional curved vanes provide superior cooling under heavy braking• Maintains OEM brake bias and ABS function• Designed exclusively for Girodisc aluminum hats – not compatible with OEM or other brands
Specifications
• Diameter: 360mm• Position: Rear• Material: High-carbon cast iron• Surface: Plain (non-dimpled/slotted)• Mount type: Floating two-piece system• Includes: Two rings and hardware kit• Sold/priced per pair• MSRP: $880.00
Girodisc D2-123 Replacement Ring FAQs
Will these fit OEM Mercedes rotors? No. These are engineered specifically for Girodisc two-piece rotor systems and will not bolt to OEM or carbon-ceramic assemblies.
Are both sides included? Yes. Each D2-123 kit includes left and right replacement rings along with all new hardware.
Why replace just the rings instead of the full rotor? Replacing only the rings saves cost while maintaining your Girodisc hats and original performance characteristics.
Do I need to use the new hardware? Yes. Always install the supplied new hardware for proper fitment, safety, and longevity.
Refresh your AMG’s braking system with Girodisc D2-123 360mm rear replacement rings — precision-built for heat management, consistency, and fade-free stopping performance on the road or track.
GiroDisc Racing Brakes & Technologies
D2-123DS Girodisc Mercedes 360mm Rear Replacement Rings (Dimpled & Slotted)
$980.00
Girodisc Mercedes Rear Replacement Rings (Dimpled & Slotted)
Upgrade your Mercedes AMG’s braking performance with Girodisc D2-123DS 360mm dimpled and slotted rear replacement rings. Designed as direct-fit replacements for Girodisc two-piece rear rotors, these rings bolt to your existing Girodisc aluminum hats using the included floating hardware kit. The dimpled and slotted design enhances bite, clears debris, and helps maintain consistent braking under extreme conditions.
Vehicle Fitment
Compatible with:• Mercedes-Benz C63 AMG (W204 / W205 chassis)• Mercedes-Benz E63 AMG (W212 / W213 chassis)• Mercedes-Benz CLS63 AMG (C218 chassis)• Mercedes-Benz S63 AMG (W222 chassis, steel rotor applications)Note: For vehicles equipped with Girodisc 360mm two-piece rear rotors. Not for OEM or carbon-ceramic systems.
Features
• Sold as a left/right pair and includes new floating hardware kit• Dimpled and slotted surface increases pad bite and gas evacuation• CNC-machined from high-carbon cast iron for superior heat control• Curved directional vanes provide maximum cooling under load• Maintains OEM brake bias and ABS function• Designed exclusively for Girodisc aluminum hats – not compatible with OEM or other brands
Specifications
• Diameter: 360mm• Position: Rear• Material: High-carbon cast iron• Surface: Dimpled and slotted• Mount type: Floating two-piece system• Includes: Two rings and full hardware kit• Sold/priced per pair• MSRP: $980.00
Girodisc D2-123DS Replacement Ring FAQs
Will these fit OEM Mercedes rotors? No. These are engineered for Girodisc two-piece rotor systems and will not fit factory or carbon-ceramic setups.
What’s the advantage of the dimpled and slotted design? It improves initial pad bite, helps vent gases, and maintains a cleaner braking surface for consistent stopping power.
Are both sides included? Yes. Each D2-123DS kit includes left and right replacement rings plus a complete hardware kit.
Do I need to replace the hardware? Yes. Each kit includes new floating hardware that must be used for proper installation and long-term reliability.
Enhance your AMG’s braking response with Girodisc D2-123DS 360mm rear replacement rings — the ideal blend of precision, durability, and cooling performance for the street or track.
GiroDisc Racing Brakes & Technologies
D2-130 Girodisc Audi 330mm Rear Replacement Rings
$580.00
Girodisc Audi 330mm Rear Rings
Restore your Audi’s braking precision with Girodisc D2-130 330mm rear replacement rings. These direct-fit rings are designed to bolt onto existing Girodisc aluminum hats, letting you refresh the wear surface without replacing the entire rotor assembly. Each set includes both left and right rings plus new floating hardware for a complete installation.
Vehicle Fitment
Compatible with:• Audi S4 (B8, B8.5, and B9 chassis)• Audi S5 (B8, B8.5, and B9 chassis)• Audi A4 / A5 models equipped with Girodisc 330mm two-piece rear rotorsNote: For Girodisc two-piece rotor systems only. Not compatible with OEM or carbon-ceramic rotors.
Features
• Sold as a left/right pair and includes new floating hardware kit• Direct replacements for Girodisc 330mm two-piece rear rotors• High-carbon cast iron provides excellent heat dissipation and strength• Curved directional vanes improve cooling and reduce fade• Maintains factory brake balance and ABS function• Designed exclusively for Girodisc aluminum hats – not compatible with OEM or other brands
Specifications
• Diameter: 330mm• Position: Rear• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rings and hardware kit• Sold/priced per pair• MSRP: $580.00
Girodisc D2-130 Replacement Ring FAQs
Will these fit OEM Audi rotors? No. These rings are designed exclusively for Girodisc two-piece rotor systems.
Are both sides included? Yes. Each D2-130 kit includes both left and right rear replacement rings plus a complete hardware set.
Why replace only the rings? It allows you to reuse your Girodisc hats, saving cost while maintaining high braking performance and balance.
Do I need to install the new hardware? Yes. Always use the supplied new hardware to ensure proper fitment and safe operation.
Upgrade your Audi’s braking system with Girodisc D2-130 330mm rear replacement rings — precision-built for cooling, strength, and dependable stopping power on both street and track.
GiroDisc Racing Brakes & Technologies
D2-143 Girodisc Audi 300mm Rear Replacement Rings
$630.00
Girodisc Audi 300mm Rear Replacement Rings
Restore your Audi’s braking precision with Girodisc 300mm rear replacement rings. Designed as direct-fit replacements for existing Girodisc two-piece rotor assemblies, these high-carbon iron rings deliver exceptional heat management, reduced unsprung weight, and smooth, fade-resistant braking performance on the street or track.
Vehicle Fitment
Compatible with:• Audi B5 S4 (with Stasis or 034Motorsport rear big brake kit)• Audi B6 S4 (with upgraded rear 300mm Girodisc system)• Audi B7 S4 (rear 300mm conversion)Note: These are replacement friction rings only and mount directly to existing Girodisc aluminum hats using the supplied hardware kit.
Precision-Machined Performance
Each Girodisc replacement ring is cast from a proprietary high-carbon iron alloy and machined in the USA for maximum precision and durability. The curved directional vanes inside the rotor act as a centrifugal air pump, pulling cooling air through the disc to dissipate heat efficiently. This design minimizes brake fade, vibration, and cracking — maintaining a consistent pedal feel even under demanding driving conditions.
Features
• Direct replacement for 300mm Girodisc rear rotor assemblies• Compatible with Audi S4 B5/B6/B7 models using 300mm upgrades• High-carbon iron alloy resists warping and thermal stress• Directional vane design for efficient heat dissipation• Machined, balanced, and finished in the USA• Includes new floating hardware kit• Sold/priced per pair
Specifications
• Diameter: 300mm• Position: Rear• Material: High-carbon cast iron• Includes: Two rotor rings and full hardware kit• Made in the USA• Sold/priced per pair
Girodisc D2-143 Replacement Ring FAQs
Will these fit my OEM Audi rear rotors? No — these are designed specifically for Girodisc or compatible two-piece rotor assemblies using 300mm hats.
Do they include hardware? Yes, each set includes a full floating hardware kit with new pins, bolts, and washers for secure installation.
Can I reuse my Girodisc hats? Yes, these rings are designed to bolt directly to your existing aluminum hats unless the hats are damaged or worn.
Are these recommended for track use? Absolutely. Girodisc rotors are engineered to handle repeated thermal cycling and heavy braking typical in track and high-performance driving.
Renew your Audi’s braking system with Girodisc D2-143 300mm rear replacement rings — precision-built in the USA for strength, cooling efficiency, and reliable stopping power.
GiroDisc Racing Brakes & Technologies
D2-145 Girodisc Corvette/Camaro 390mm Rear Replacement Rings
$880.00
Girodisc Corvette, Camaro Rear Rings
The Girodisc D2-145 rear replacement rings are designed for the 390mm Girodisc two-piece rotor systems used on Chevrolet Corvette C7 and Camaro SS/ZL1 models. These precision-engineered rings bolt directly to your existing Girodisc aluminum hats and include all new floating hardware, letting you replace only the wear surface for a cost-effective, high-performance brake refresh.
Vehicle Fitment
Compatible with:• Chevrolet Corvette C7 (including Grand Sport and Z06)• Chevrolet Camaro SS / ZL1 (6th Gen, 390mm Girodisc rear rotors)Note: For use only with Girodisc 390mm two-piece rear rotor systems. Not compatible with OEM or carbon-ceramic rotors.
Features
• Sold as a left/right pair with full hardware kit• Direct replacements for Girodisc 390mm two-piece rear rotors• CNC-machined from high-carbon cast iron for superior heat capacity• Curved directional vanes improve airflow and cooling• Maintains OEM brake balance and ABS function• Designed exclusively for Girodisc aluminum hats – not compatible with OEM or other brands
Specifications
• Diameter: 390mm• Position: Rear• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rings and new hardware kit• Sold/priced per pair
Girodisc D2-145 Replacement Ring FAQs
Will these fit factory Corvette or Camaro rotors? No. These are designed specifically for Girodisc two-piece rotor hats and are not compatible with factory or carbon-ceramic setups.
Are both sides included? Yes. Each D2-145 kit includes both left and right replacement rings along with a complete hardware kit.
Why replace just the rings instead of the full rotor? It allows you to maintain your Girodisc hats, lower cost, and restore braking performance without replacing the full assembly.
Do I need to use the new hardware? Yes. The included new hardware must be used to ensure correct fitment and safety.
Upgrade your Corvette or Camaro braking performance with Girodisc D2-145 390mm rear replacement rings — precision-built for strength, cooling, and fade-free stopping power on the street or the track.
