GiroDisc Racing Brakes & Technologies
D1-067 GiroDisc Ford S550 Mustang (w/ Brembo) Front Replacement Rings
$1,222.00
D1-067 Girodisc Ford S550 Mustang (w/ Brembo) Front Replacement Rings
Optimize your Mustang’s braking performance with Girodisc D1-067 380mm front replacement rings. These precision-machined rotors are direct replacements for Girodisc’s two-piece systems and bolt to your existing aluminum hats using the included floating hardware kit. Built from Girodisc’s proprietary high-carbon cast iron, these rings deliver exceptional heat resistance, fade control, and consistent braking feel during both street and track use.
Vehicle Fitment
Compatible with:• Ford Mustang GT (S550, 2015–2023) with Performance Pack (Brembo 6-piston front brakes)• Ford Mustang GT350 (2016–2020)• Ford Mustang Mach 1 (2021–2023)Note: Designed exclusively for Girodisc 380mm two-piece front rotor systems. Not compatible with OEM one-piece rotors or carbon-ceramic assemblies.
Features
• Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 380mm two-piece front rotors• CNC-machined from high-carbon cast iron for superior durability and heat management• Directional curved vanes increase airflow and cooling efficiency• Maintains OEM brake bias, ABS, and traction control calibration• Precision-balanced to eliminate vibration and ensure smooth braking• Designed exclusively for Girodisc aluminum hats
Specifications
• Diameter: 380 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and complete hardware kit• Sold/priced per pair
Girodisc D1-067 Ford S550 Mustang Front Ring FAQs
Will these fit OEM Mustang Brembo rotors? No. These replacement rings are designed specifically for Girodisc aluminum hats and cannot mount to OEM one-piece Brembo rotors.
What brake pads pair best with these rotors? For street and spirited driving, Ferodo DS2500 pads are excellent. For heavy track use, Pagid RSL29 or Carbotech XP12 deliver superior bite and fade resistance.
Are these rotors directional? Yes. Each rotor is labeled for left and right sides. Proper installation ensures the internal vanes draw air through the rotor for maximum cooling under load.
What torque should be applied to the hardware bolts? Torque to 12 ft-lbs (16 Nm) using blue Loctite. After one complete heat cycle, recheck torque to ensure proper float and hardware integrity.
Upgrade your Mustang’s stopping performance with Girodisc D1-067 380mm front replacement rings — engineered for cooling efficiency, reduced fade, and consistent braking feel lap after lap.
GiroDisc Racing Brakes & Technologies
D1-211 Girodisc Chevrolet Camaro ZL1 (6th Gen) Front Replacement Rings
$1,222.00
D1-211 Girodisc Chevrolet Camaro ZL1 (6th Gen) Front Replacement Rings
Bring your Camaro ZL1’s braking system back to peak performance with Girodisc D1-211 390mm front replacement rings. These high-performance rings bolt directly to your existing Girodisc aluminum hats using the included floating hardware kit. Precision-machined from Girodisc’s proprietary high-carbon iron alloy, they deliver outstanding heat management, reduced fade, and smooth pedal feel — even during aggressive track sessions.
Vehicle Fitment
Compatible with:• Chevrolet Camaro ZL1 (6th Gen, 2017+)• Chevrolet Camaro SS 1LE (with 390mm front rotors)Note: Designed exclusively for Girodisc 390mm two-piece front rotor systems. Not compatible with OEM one-piece or carbon-ceramic rotors.
Features
• Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 390mm two-piece front rotors• CNC-machined from high-carbon cast iron for superior strength and thermal capacity• Directional curved vanes enhance cooling efficiency and reduce fade• Maintains OEM brake bias and ABS calibration• Precision-balanced for vibration-free operation• Designed exclusively for Girodisc aluminum hats – not compatible with OEM or other brands
Specifications
• Diameter: 390mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and new hardware kit• Sold/priced per pair
Girodisc D1-211 Chevrolet Camaro ZL1 Front Replacement Ring FAQs
Can these be used with the factory ZL1 rotor hats? No. These rings are designed for Girodisc aluminum hats and will not bolt to factory one-piece rotors.
Are they compatible with the OEM six-piston Brembo calipers? Yes. They maintain factory dimensions and work perfectly with the stock Brembo caliper setup.
How do they compare to stock GM rotors? Girodisc rings offer better cooling, reduced weight, and longer life under heavy braking thanks to the floating two-piece design.
Do these need any special maintenance? Periodic inspection of hardware torque is recommended — otherwise, they’re service-free and designed for long-term reliability.
Upgrade your Chevrolet Camaro ZL1’s braking performance with Girodisc D1-211 390mm front replacement rings — engineered for heat control, balance, and endurance on road and track.
GiroDisc Racing Brakes & Technologies
D1-147 Girodisc Front Replacement Rotor Rings | Corvette, Camaro (370mm)
$1,222.00
D1-147 Girodisc  Corvette C7 Z06 Front Replacement Rings
The Girodisc D1-147 Front Replacement Rings are designed for use with the A1-319 Girodisc front rotor kits for the 2023+ Chevrolet Corvette C8 Z06. These replacement rings allow you to reuse your existing Girodisc aluminum hats, lowering long-term brake costs while maintaining the same high level of performance.
Vehicle Fitment
Chevrolet Corvette C8 Z06 (without Z07 carbon ceramic brake package)
Chevrolet Corvette C7 Z06 & Grand Sport
For use with Girodisc front rotor kits using a 370mm rotor ring
Rings and hardware only – designed exclusively for Girodisc hats
Serviceable Two-Piece Design
These rings are machined from Girodisc’s proprietary high-carbon iron casting and feature 72 curved vanes that act as a centrifugal pump to maximize cooling efficiency. Each set includes new floating hardware to restore proper rotor float during service. Replacing only the rings keeps consumable costs down while retaining full braking performance.
Features
Replacement rings only; reuse your A1-319 Girodisc aluminum hats
High-carbon iron with 72 curved vanes for superior airflow and cooling
Includes new floating hardware for a complete refresh
Designed exclusively for Girodisc hats
Minimum recommended ring thickness: 32 mm
D1-147 Girodisc Front Replacement Rings FAQs:
Do these include hats? No. These are rings only and must be installed on existing A1-319 Girodisc aluminum hats.
Can I use these with OEM rotors? No. They are designed exclusively for Girodisc rotor kits.
Do they come with new hardware? Yes. All replacement rings include new floating hardware.
When should the rings be replaced? Replace them when the thickness reaches 32 mm or if cracks propagate to the outer edge under inspection.
Are they directional? Yes. Each ring is side-specific, with directional curved vanes for optimal cooling.
GiroDisc Racing Brakes & Technologies
D1-216 Girodisc Audi 374mm Front Replacement Rings
$1,222.00
D1-216 Girodisc Audi 374mm Front Replacement Rings
Restore your Audi’s braking precision with Girodisc D1-216 374mm front replacement rings. These precision-engineered rings mount directly to your existing Girodisc aluminum hats using the included floating hardware kit. Each ring is machined from Girodisc’s proprietary high-carbon cast iron, providing exceptional heat capacity, reduced fade, and consistent performance for both street and track use.
Vehicle Fitment
Compatible with:• Audi RS5 (B9, 2018+)• Audi S6 / S7 (C8, 2020+)• Audi RS4 (B9, 2018+)Note: Designed exclusively for Girodisc 374mm two-piece front rotor systems. Not compatible with OEM one-piece or carbon-ceramic rotors.
Features
• Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 374mm two-piece front rotors• CNC-machined from high-carbon cast iron for excellent thermal stability• Directional curved vanes enhance airflow and cooling• Maintains factory brake bias and ABS/ESC calibration• Precision-balanced for smooth, quiet operation• Designed exclusively for Girodisc aluminum hats – not compatible with OEM or other brands
Specifications
• Diameter: 374mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and new hardware kit• Sold/priced per pair
Girodisc D1-216 Audi 374mm Front Ring FAQs
Do these fit Audi’s factory two-piece rotor hats? No. The D1-216 rings are made specifically for Girodisc hats and won’t bolt to OEM or other aftermarket hats.
Will they clear factory calipers? Yes. They maintain the correct rotor offset and dimensions to fit factory or OEM-sized calipers without modification.
How do they perform compared to OEM rotors? Girodisc rings offer improved cooling, lighter rotational mass, and reduced fade during repeated hard braking.
Are they suitable for daily driving? Absolutely. The floating hardware design keeps noise low in normal driving while providing race-ready heat management when pushed hard.
Upgrade your Audi’s braking performance with Girodisc D1-216 374mm front replacement rings — engineered for precise fitment, cooling efficiency, and long-lasting performance on street and circuit.
GiroDisc Racing Brakes & Technologies
D1-179 Girodisc Audi 370x34mm Front Replacement Rings
$1,222.00
D1-179 Girodisc Audi Front Rings
Restore peak braking precision in your Audi RS or S model with Girodisc D1-179 370x34mm front replacement rings. These precision-machined components bolt directly to your existing Girodisc aluminum hats using the included floating hardware kit. Constructed from high-carbon cast iron, they offer improved heat management, reduced unsprung weight, and fade-free performance during aggressive street or track use.
Vehicle Fitment
Compatible with:• Audi RS5 (B8/B8.5, 2013–2015)• Audi RS4 (B8, 2013–2015)• Audi S6 / S7 (C7, 2013–2018)• Audi A6 / A7 3.0T with Performance Brake PackageNote: Designed exclusively for Girodisc 370x34mm two-piece front rotor systems. Not compatible with OEM one-piece or carbon-ceramic rotors.
Features
• Sold as a left/right pair with full floating hardware kit• Direct replacements for Girodisc 370x34mm two-piece front rotors• Cast from proprietary high-carbon iron alloy for superior thermal stability• Directional curved vanes channel air for maximum cooling• Maintains OEM brake bias and ABS/ESC function• Dynamically balanced for smooth, vibration-free operation• Designed exclusively for Girodisc aluminum hats
Specifications
• Diameter: 370 mm• Thickness: 34 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and new hardware kit• Sold/priced per pair
Girodisc D1-179 Audi 370x34mm Front Ring FAQs
Will these fit OEM Audi rotor hats? No. The D1-179 rings are specifically designed to mount to Girodisc aluminum hats only, not factory or carbon-ceramic hats.
What pad compounds work best with these rotors? They perform excellently with Ferodo DS2500, Pagid RS29, and Hawk HP+ pads, depending on your driving style and heat demands.
Do they require a specific bedding process? Yes. Perform 8–10 medium stops from 60–10 mph to evenly transfer pad material, then cool completely before heavy use.
Are these rotors directional? Yes. Each rotor is marked for left and right sides — follow the arrow cast into the hat mounting area to ensure proper airflow and cooling direction.
Upgrade your Audi’s braking system with Girodisc D1-179 370x34mm front replacement rings — precision-balanced for endurance, consistency, and maximum confidence on the road or at the track.
GiroDisc Racing Brakes & Technologies
Girodisc D1-145 Corvette/Camaro 394mm Front Replacement Rings
$1,222.00
D1-145 Girodisc Corvette, Camaro 394mm Front Replacement Rings
Bring race-level braking precision to your GM performance car with Girodisc D1-145 394mm front replacement rings. These high-performance rings bolt directly to your existing Girodisc aluminum hats using the included floating hardware kit. Each ring is CNC-machined from Girodisc’s proprietary high-carbon cast iron, ensuring excellent heat dissipation, consistent friction, and fade-free braking during aggressive street or track sessions.
Vehicle Fitment
Compatible with:• Chevrolet Corvette C7 Z06 / Grand Sport (Front)• Chevrolet Camaro ZL1 (6th Gen, 2017+)• Chevrolet Camaro SS 1LE (2016+)Note: Designed exclusively for Girodisc 394mm two-piece front rotor systems. Not compatible with OEM one-piece or carbon-ceramic rotors.
Features
• Sold as a left/right pair with full floating hardware kit• Direct replacements for Girodisc 394mm two-piece front rotors• CNC-machined from high-carbon iron alloy for superior heat resistance• Directional curved vanes accelerate airflow and reduce operating temperatures• Maintains factory brake bias, ABS, and stability control calibration• Precision-balanced for smooth operation and reduced unsprung weight• Designed exclusively for Girodisc aluminum hats
Specifications
• Diameter: 394 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and new hardware kit• Sold/priced per pair
Girodisc D1-145 Corvette / Camaro 394mm Front Replacement Ring FAQs
Do these rotors fit OEM Z06 or ZL1 hats? No. The D1-145 rings are specifically engineered for Girodisc aluminum hats and cannot be mounted to factory one-piece rotors or carbon-ceramic assemblies.
What pad compounds work best with these rings? For dual-use driving, Pagid RS29 or Ferodo DS2500 pads are recommended. For dedicated track setups, use Pagid RSL1Â compounds for higher temperature thresholds.
What torque specs are required for the mounting hardware? Torque each fastener to 12 ft-lbs (16 Nm) using blue Loctite. Recheck torque after the first full heat cycle to confirm proper seating.
Are these rotors directional? Yes. Each ring is labeled for left and right installation — follow the vane direction to maintain optimal airflow and cooling under heavy braking.
Upgrade your Corvette or Camaro’s braking system with Girodisc D1-145 394mm front replacement rings — engineered for endurance, balance, and peak thermal performance on road or circuit.
GiroDisc Racing Brakes & Technologies
D2-145 Girodisc Corvette/Camaro 390mm Rear Replacement Rings
$1,222.00
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.
GiroDisc Racing Brakes & Technologies
D1-032 GiroDisc Porsche 350 mm Front Replacement Rings
$1,222.00
D1-032 Girodisc Porsche 350mm Front Replacement Rings
Maintain your Porsche’s sharp, confidence-inspiring braking feel with Girodisc D1-032 350 mm front replacement rings. These precision-machined rotors are direct replacements for Girodisc two-piece systems and mount to your existing aluminum hats using the included floating hardware kit. Each ring is crafted from Girodisc’s proprietary high-carbon cast-iron alloy, delivering outstanding heat control, fade resistance, and smooth pedal feedback under repeated high-load braking.
Vehicle Fitment
Compatible with:• Porsche 996 Carrera 4S (2002 – 2005)• Porsche 997 Carrera S / 4S (2005 – 2012)• Porsche 997 GTS (2010 – 2012)Note: Designed exclusively for Girodisc 350 mm two-piece front rotor systems. Not compatible with OEM one-piece or carbon-ceramic rotors.
Features
• Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 350 mm two-piece front rotors• High-carbon iron construction for stable friction and thermal control• Directional curved vanes maximize cooling efficiency• Maintains OEM brake bias and ABS calibration• Precision-balanced for vibration-free performance• Designed exclusively for Girodisc aluminum hats
Specifications
• Diameter: 350 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and hardware kit• Sold/priced per pair
Girodisc D1-032 Porsche 350 mm Front Replacement Ring FAQs
Will these fit OEM Porsche rotor hats? No. These rings are engineered specifically for Girodisc aluminum hats and cannot be used with factory one-piece rotors.
What pad compounds work best with these rotors? For street and spirited use, Ferodo DS2500 or Hawk HPS 5.0 are ideal. For track days, Pagid RS29 or Carbotech XP12 deliver exceptional fade control and braking stability.
Are these rotors directional? Yes. Each rotor is clearly marked left and right to ensure the internal curved vanes flow air through the rotor for optimal cooling.
How should the hardware be torqued? Tighten each bolt to 12 ft-lbs (16 Nm) using blue Loctite. Recheck torque after one full heat cycle to confirm proper float and hardware security.
Upgrade your Porsche’s braking system with Girodisc D1-032 350 mm front replacement rings — precision-built for heat management, durability, and track-ready stopping power.
GiroDisc Racing Brakes & Technologies
D2-032 Girodisc Porsche 350mm Rear Replacement Rings
$1,222.00
Girodisc Porsche 350mm Rear Rings
Restore precise braking feel in your Porsche with Girodisc D2-032 350mm rear replacement rings. These precision-machined rings bolt directly to existing Girodisc aluminum hats using the included floating hardware kit. Replace only the wear surface and maintain the lightweight, high-performance benefits of your Girodisc two-piece system — perfect for both road and track driving.
Vehicle Fitment
Compatible with:• Porsche 997 Carrera S (rear)• Porsche 997 Carrera 4S (rear)• Porsche 997 GTS (rear)• Porsche 997 Targa 4S (rear)Note: For Girodisc 350mm two-piece rear rotor systems only. Not compatible with OEM or PCCB carbon-ceramic rotors.
Features
• Sold as a left/right pair with new floating hardware kit• Direct replacements for Girodisc 350mm two-piece rear rotors• High-carbon cast iron delivers excellent heat dissipation and strength• Curved directional vanes maximize cooling and prevent fade• Maintains factory brake bias and ABS calibration• Designed exclusively for Girodisc aluminum hats – not compatible with OEM or other brands
Specifications
• Diameter: 350mm• Position: Rear• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rings and complete hardware kit• Sold/priced per pair• MSRP: $880.00
Girodisc D2-032 Porsche 997 Rear Replacement Ring FAQs
Do these fit the factory Porsche two-piece rotors? No. These are designed only for Girodisc aluminum hats and are not compatible with OEM rotor assemblies.
Can I use these with the factory calipers? Yes. These rings are designed to work seamlessly with the stock Porsche calipers when paired with Girodisc hats.
Are they suitable for heavy track use? Absolutely. Girodisc’s floating design and high-carbon alloy handle repeated high-temperature braking without warping or cracking.
When should I replace my Girodisc rings? Replace them when the rotors reach minimum thickness or show visible surface heat checking from repeated track cycles.
Upgrade your Porsche’s braking performance with Girodisc D2-032 350mm rear replacement rings — precision-engineered for balance, cooling, and endurance under the toughest driving conditions.
GiroDisc Racing Brakes & Technologies
D1-122 Girodisc Porsche 991.1 S, 4S, GTS Front Replacement Rings
$1,222.00
D1-122 Girodisc Porsche Front Rings
Maintain your Porsche’s precision braking feel with Girodisc D1-122 340mm front replacement rings. Designed to bolt directly to your existing Girodisc aluminum hats using the included floating hardware kit, these rings provide OEM fitment with track-proven performance. Each rotor ring is CNC-machined from Girodisc’s proprietary high-carbon cast iron, offering exceptional heat management, reduced unsprung weight, and improved consistency under demanding driving conditions.
Vehicle Fitment
Compatible with:• Porsche 991.1 Carrera S (2012–2016)• Porsche 991.1 Carrera 4S (2012–2016)• Porsche 991.1 Carrera GTS (2014–2016)Note: Designed exclusively for Girodisc 340mm two-piece front rotor systems. Not compatible with OEM one-piece or PCCB carbon-ceramic rotors.
Features
• Sold as a left/right pair with complete floating hardware kit• Direct replacements for Girodisc 340mm two-piece front rotors• High-carbon iron alloy ensures stable friction and long-term durability• Directional curved vanes optimize cooling airflow and reduce rotor temperatures• Maintains factory brake bias, ABS, and stability control calibration• Precision-balanced to eliminate vibration and ensure smooth braking• Designed exclusively for Girodisc aluminum hats
Specifications
• Diameter: 340 mm• Position: Front• Material: High-carbon cast iron• Mount type: Floating two-piece system• Includes: Two rotor rings and complete hardware kit• Sold/priced per pair
Girodisc D1-122 Porsche Front Replacement Ring FAQs
Can these be used with OEM Porsche rotor hats? No. These rings are engineered specifically for Girodisc aluminum hats and will not fit OEM one-piece or PCCB systems.
Which brake pad compounds are recommended? For street and occasional track driving, Pagid RS29 or Ferodo DS2500 pads are excellent choices. For full track use, use higher-friction compounds such as Pagid RSL1.
What torque specification is required for the hardware? Torque each bolt to 12 ft-lbs (16 Nm) with blue Loctite, then recheck after one full heat cycle for proper seating.
Are these rotors directional? Yes. Each rotor is marked for left or right installation to ensure proper airflow through the curved internal vanes, maximizing cooling efficiency.
Upgrade your Porsche 991.1 Carrera’s braking performance with Girodisc D1-122 340mm front replacement rings — designed for heat control, balance, and endurance from road to track.
GiroDisc Racing Brakes & Technologies
D2-111 Girodisc Replacement Rear Rotor Rings | Ferrari 488 & 458
$1,222.00
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
D2-110 Girodisc Ferrari 360 CS, F430, and Scuderia Rear Replacement Rings
$1,222.00
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
D2-102 Girodisc Ferrari F430 Challenge Rear Replacement Rings
$1,222.00
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.
Sparco S.p.A.
Sparco Circuit/Circuit II QRT Racing Seat | 2029 Expiry
$1,221.00
$1,526.00
Sparco Circuit / Circuit II QRT Racing Seat
2029 Expiry
The Sparco Circuit QRT is an ultra-light competition seat specifically designed for circuit use. Made from aramidic fiber-reinforced fiberglass with all-new QRT technology, the Sparco Circuit QRT has an ultra-light shell. The Sparco Circuit QRT includes integrated bolsters to protect the head. This seat can be used with a Hans device for even greater protection. The ultra-light shell is then wrapped in an impact-absorbing and fire retardant fabric that helps hold the body. The integrated head protection is designed to work comfortably and safely with a Hans Device. The slim back offers high lateral support, while an all-new, thin-profile bottom cushion keeps the driver low in the seat without sacrificing comfort. As with all Sparco racing seats, the anti-wear fabric has been added to the seat edges to improve durability and wear.
The Sparco Circuit QRT is FIA 8855-1999 approved and available in two sizes: Circuit QRT (Standard) and Circuit II QRT (Large).
What is Sparco QRT Technology?
QRT technology gives an unparalleled mechanical strength/weight ratio for fiberglass composite racing seats. QRT technology gives an average weight savings of 30% when compared to standard fiberglass technology. The main benefit is that QRT seats approach weight of carbon fiber seat at the price of a fiberglass composite seat.
Sparco Circuit QRT Race Seat Features
QRT technology – 30% weight savings
Ultra-light Aramidic fiber-reinforced fiberglass shell
Integrated head bolsters for greater safety
HANS device compatible
Fire retardant fabric
FIA approved
The integrated head protection is designed to work comfortably and safely with a Hans Device. The slim back offers high lateral support, while an all-new, thin-profile bottom cushion keeps the driver low in the seat without sacrificing comfort. As with all Sparco racing seats, the anti-wear fabric has been added to the seat edges to improve durability and wear.
Sparco Circuit QRT Fiberglass Racing Seat Details
Manufacturer: Sparco
Manufacturer part number: 008019RNR
Rating: FIA 8855-1999
Mounting: Side
Ultra-light Aramidic fiber-reinforced fiberglass shell
Integrated head protection
No-slip fabric for shoulders and bottom cushion
Smooth and slim backrest for high lateral support
Pre-shaped thigh cushion helps separate the driver's legs
Self-extinguishing fabric
Dimensions
Brey Krause
Brey Krause R-1032 Harness Bar Porsche 991 & 992
$1,220.00
Brey Krause R-1032 Harness Bar For Porsche 991 & 992 (Except Targa)
Harness Mount Bar pictured has a custom powder coat. All Brey Krause Harness Mount Bars come with a wrinkle black powder coat.
The Brey Krause Porsche 991 & 992 harness mount bar has been tested and certified by an independent lab to handle the types of forces required by the National Highway Traffic Safety Admin. DOT and SAE J385 Rev.MAR 95, Motor Vehicle Seat Belt Anchorages-Performance Requirements. The 991 harness mount bar properly locates and supports racing shoulder harnesses relative to the driver. In the case of an accident, it helps protect the driver's shoulders and spine. The harness guides also prevent excessive shifting and fatigue of the driver during the high G loads of cornering and braking. Our bars are easy to install and remove, use only existing holes and mounting points, and will not damage the car in any way.
Strength requirements for harness mounts are considerably greater than those for harness guide bars since they must support the entire load applied to the belts. A mount really can't be relied on unless it has been tested to support the loads required by the National Highway Traffic Safety Administration.
The Brey-Krause Harness Mount supported the loads specified by the National Highway Traffic Safety Admin. DOT for upper torso restraints in all automobiles. Tensile tests performed by an independent lab.
Brey Krause R-1032 Porsche Harness Bar Details
Manufacturer: Brey Krause
Manufacturer Part Number: R-1032
Material:Â Type 304 stainless steel
Design: Allows seat travel for tall drivers; includes provisions for Seat Back Brace.
Installation: Attaches to seat belt mounts & seat track hardware.
Models:Â Porsche 991 & 992 (except Targa models must use R-1033 down tubes).
Weight:Â 16 lbs
Finish:Â Powder coated in durable black wrinkle-finish.
Stilo S.r.l.
Stilo ST6 KRT Composite Kart Racing Helmet | FIA 8859-2015
$1,215.00
Stilo ST6 KRT Composite Karting Adult Helmet
The Stilo ST6 KRT Composite helmet delivers pro-level performance for adult kart racers seeking lightweight comfort, elite safety, and confidence-inspiring visibility. Certified to FIA 8859-2015, the KRT Composite features a multi-layer composite shell engineered for superior energy absorption, stiffness, and durability—while maintaining a balanced weight ideal for endurance and high-heat competition.
Developed on the proven ST6 platform used across Stilo’s professional motorsport line, this helmet offers an expanded eyeport for superior peripheral vision, allowing drivers to read track conditions, spot apexes, and make passes with greater precision. Inside, race-tuned padding and a carefully sculpted shell shape provide a secure, stable fit with reduced pressure points and improved long-session comfort.
An optimized front and top ventilation system delivers consistent airflow through the shell, helping drivers stay cool and focused even in extreme conditions. A robust and smooth visor mechanism ensures reliable function through every lap—whether you're practicing, qualifying, or battling for position on race day.
Stilo ST6 KRT Composite Kart Racing Helmet Features
FIA 8859-2015 certified for adult karting and motorsport use
Full composite multi-layer shell for lightweight strength and impact protection
Wide eyeport for improved peripheral visibility and track awareness
Front and top ventilation system for optimal cooling and airflow
Ergonomic, race-tuned interior padding for secure fit and comfort
Streamlined visor mechanism built for durability and smooth operation
Stilo ST6 KRT Composite Kart Racing Helmet FAQs
Is the Stilo ST6 KRT Composite helmet FIA approved?
Yes, the ST6 KRT Composite is fully homologated to FIA 8859-2015, making it legal for all karting and motorsport events that require FIA-certified helmets.
What materials are used in the KRT Composite helmet?
This helmet features a multi-layer full composite shell designed for lightweight performance, excellent impact protection, and structural rigidity at speed.
How does the ST6 KRT Composite compare to the Carbon model?
The KRT Composite offers many of the same features as the Carbon version—including the wide eyeport and advanced ventilation—but at a more affordable price point. It is slightly heavier due to the composite shell construction.
Does the helmet provide effective ventilation?
Yes, it includes a well-designed system of front and top vents that channel air through the helmet shell to reduce heat buildup and help maintain focus during long races.
Is the interior padding removable or washable?
Yes, the helmet features modular, removable padding that can be cleaned or replaced to maintain hygiene and comfort over time.
Who should choose the ST6 KRT Composite helmet?
This helmet is ideal for adult kart racers who want FIA-certified protection, enhanced vision, and pro-level comfort at a competitive price point. It’s especially well-suited for training, endurance racing, and weekend competition.
Stil ST6 Sizing Guide
More FAQs
What materials are used in the KRT Composite helmet?
This helmet features a multi-layer full composite shell designed for lightweight performance, excellent impact protection, and structural rigidity at speed.
Who should choose the ST6 KRT Composite helmet?
This helmet is ideal for adult kart racers who want FIA-certified protection, enhanced vision, and pro-level comfort at a competitive price point. It’s especially well-suited for training, endurance racing, and weekend competition.
Stilo helmets are worn by winning drivers worldwide, including well known F1 Mercedes driver Valterri Bottas, Monster Energy NASCAR Cup Series Champions Martin Truex, Jimmie Johnson and Kyle Busch, IndyCar Series Champion Tony Kanaan and WRC Champion Sébastien Loeb.
Kart Racing Helmet FAQs
Remember that safety is paramount in kart racing, and choosing the right helmet and maintaining it properly is essential for your protection on the track. Consult the professionals at Competition Motorsport any time you have specific questions about your racing helmet.
Why do I need a racing helmet?Auto and kart racing helmets are essential for protecting your head in high-speed accidents. They also shield against debris and, in some motorsports, fire—making them a non-negotiable safety requirement.
How do I choose the right size Kart Racing helmet?Use a flexible tape to measure the circumference of your head just above your eyebrows and ears. Compare the measurement to the size chart. For more help, read our blog on how to fit your helmet properly at Competition Motorsport.
Can I use a motorcycle helmet for kart racing?No. Motorcycle helmets lack the kart-specific certifications and features like proper ventilation and impact resistance optimized for karting. Always use a helmet rated for motorsport competition.
How often should I replace my kart racing helmet?Replace your helmet every few years depending on usage and the manufacturer's guidance. If it’s been dropped, involved in an impact, or shows signs of wear, replace it immediately.
Are expensive racing helmets safer than budget ones?Yes, typically. While both must meet minimum safety standards, premium helmets offer lighter materials, better fit, improved aerodynamics, and enhanced comfort, all of which impact race performance and fatigue.
How do I maintain and clean my kart racing helmet?Clean the exterior and interior using a helmet-specific care product like the Molecule Helmet Care Kit. Avoid submerging the helmet or using abrasive cleaners. Visors should be cleaned gently to avoid scratching.
Do I need to wear a balaclava under my kart racing helmet?While not required for all karting events, a balaclava enhances comfort, keeps your helmet liner clean, and helps wick sweat. Fire-rated balaclavas are mandatory in sanctioned auto racing and recommended for high-performance karting.
Can I wear glasses with my kart racing helmet?Yes. Wide eye ports, make it compatible with most prescription glasses and racing eyewear. A good fit ensures the glasses remain stable and fog-free.
Are carbon fiber helmets better?Carbon fiber helmets are lighter and stronger, reducing fatigue during long races while offering excellent impact protection. They are a top choice for competitive drivers.
Can I use a used helmet for racing?It’s not recommended. Damage or degradation may not be visible, and older helmets might not meet current safety standards. Always buy new from an authorized dealer like Competition Motorsport.
What's the importance of proper helmet ventilation?Good ventilation helps manage heat and moisture inside the helmet, reducing fatigue and keeping you focused throughout your race.
How do I store my kart racing helmet between races?Store your helmet in a cool, dry place away from direct sunlight. Use a padded helmet bag like our Competition Motorsport Evo Helmet Bag to prevent damage during transport or storage.
What is the difference between Snell K2020 and CMR2016 certifications?
Snell K2020 is designed for adult karting helmets, focusing on impact protection. CMR2016 is tailored for drivers under 15, offering a lighter helmet to reduce neck strain while maintaining safety standards.
Are tear-off visors necessary for kart racing?
Tear-off visors are beneficial in maintaining clear vision during races by allowing drivers to remove a dirty visor layer quickly. They are especially useful in outdoor karting where debris and dirt are common.
How do I know if my helmet is still safe to use?
Helmets should be inspected regularly for signs of wear or damage. If a helmet has been involved in a significant impact or shows signs of degradation, it should be replaced immediately. Additionally, helmets should be replaced every 5 years, even if no damage is visible.
Can I customize my kart racing helmet?
Yes, many manufacturers offer customization options for fit and aesthetics. However, any modifications should not compromise the helmet's structural integrity or safety certifications.