GiroDisc Racing Brakes & Technologies
A1-270 Girodisc Dodge Viper TA, ACR-X Front Rotors
$1,609.00
Dodge Viper TA, ACR-X Front Rotors
The Girodisc system is a direct replacement for the OE front discs on the Dodge Viper TA and ACR-X. No modifications are necessary—the rotors bolt directly to the car and work seamlessly with factory calipers. By upgrading to these lightweight, high-performance rotors instead of a full big-brake kit, you’ll maintain your OEM brake bias and ABS calibration while dramatically improving braking performance and heat control.
Track-Proven Design, Made in the USA
Each Girodisc rotor is engineered and machined in the United States using premium materials for maximum reliability under the most demanding conditions. The central hat section is CNC-machined from 6061-T6 aircraft-grade aluminum, while the cast-iron rings are poured from Girodisc’s proprietary high-carbon alloy for exceptional durability and thermal stability. With a 48-vane directional cooling design, these rotors act as centrifugal pumps, pulling cool air through the disc to reduce fade and extend pad life.
Vehicle Fitment
Dodge Viper TA (Time Attack)
Dodge Viper ACR-X
Dodge Viper SRT (with factory Brembo calipers)
Features
Direct OEM Replacement: Fits factory hubs and calipers—no modifications required.
Lightweight Construction: Significantly reduces unsprung and rotational mass for improved handling and responsiveness.
48 Curved Directional Vanes: Provide superior cooling and consistent performance during repeated hard stops.
Floating Mount System: Uses 8–10 high-strength alloy steel drive pins and anti-noise spring washers for silent, precise operation under thermal expansion.
Made in the USA: Fully machined and assembled at Girodisc’s facility from domestically sourced materials.
FAQs – Dodge Viper TA, ACR-X Front Rotors
Do these rotors fit the OEM calipers? Yes, they’re designed to work perfectly with the stock Brembo calipers on the Viper TA and ACR-X models.
Can these be used for track racing? Absolutely. Girodisc rotors are built to withstand repeated track abuse while remaining quiet and reliable for street use.
Do they come with hardware? All necessary hardware is included, and installation is a direct bolt-on.
Are they sold individually or in pairs? Each listing is sold and priced per pair.
Upgrade your Dodge Viper’s braking system with Girodisc lightweight, floating two-piece rotors. Experience reduced fade, quicker cooling, and precise brake modulation for every lap and every stop.
GiroDisc Racing Brakes & Technologies
A1-271 Girodisc Chevrolet Camaro SS 1LE (6th Gen) Front Rotors
$1,749.00
A1-271 Girodisc Chevrolet Camaro SS 1LE (6th Gen) Front Rotors
These Girodisc 2-piece front rotors are a direct replacement for the factory Camaro SS 1LE (6th Gen) brake package and also work on base cars equipped with the Chevrolet Performance brake kit. The floating design reduces unsprung and rotational mass while retaining OEM calipers, ABS, and brake bias.
Vehicle Fitment
Chevrolet Camaro SS 1LE (6th Gen) – Front
Chevrolet Camaro (6th Gen) with Chevrolet Performance front brake kit – Front
Design & Cooling
The central hat is CNC machined from U.S.-sourced 6061-T6 aluminum and anodized for durability. Rings are poured and machined in the USA from proprietary high‑carbon iron and use curved vanes to pull cooling air through the disc during hard use.
Features
Direct OE replacement; no permanent modifications required
2‑piece floating construction reduces unsprung & rotational mass
High‑strength, cadmium‑plated steel drive pins with spring hardware
Reusable aluminum hats; ring‑only service when worn
Sold/priced per pair
GiroDisc Racing Brakes & Technologies
A1-272 Girodisc 2pc Front Brake Rotors for Porsche 992 GT3/GT3RS (OEM Steel)
$2,728.00
A1-272 Girodisc Porsche 992 GT3 Front Rotors
Direct‑replacement 2‑piece front rotors for the Porsche 992 GT3 with OEM iron brakes. Floating assemblies reduce unsprung mass and preserve factory brake bias and ABS behavior.
A1-272 Girodisc Porsche 992 GT3 Front Rotor Vehicle Fitment
Porsche 992 GT3 – Front (OEM iron brakes)
Design & Cooling
Proprietary high‑carbon iron rings with curved vanes draw cooling air through the disc under load. Reusable anodized 6061‑T6 hats attach with cadmium‑plated floating hardware.
A1-272 Girodisc Porsche 992 GT3 Front Rotor Features
Direct OE replacement; no modifications required
2‑piece floating construction reduces unsprung & rotational mass
Reusable hats; ring‑only service
Sold/priced per pair
GiroDisc Racing Brakes & Technologies
A1-273 Girodisc 2pc Front Brake Rotors Tesla Plaid
$2,308.00
A1-273 Girodisc Two-Piece Front Brake Rotors
FITMENT: Tesla Model S Plaid, Front
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 system is an upgrade to a two-piece steel rotor and aluminum hat combination and is a direct replacement for the OEM brake rotors. These two-piece floating rotors will bolt directly to the car and work with your OEM calipers perfectly. By upgrading your brakes with these lightweight, high-performance replacements (as opposed to a big brake kit), your factory brake bias is maintained, along with your ABS efficiency.
Girodisc two-piece floating rotors are lighter than OEM brake rotors. This reduction in rotational mass and unsprung weight allows for quicker acceleration, sharper steering, and faster suspension response.
When used with Pagid or PFC performance brake pads and CMS RF-1 brake fluid (available from Competition Motorsport), you have an amazing solution to overheating, cracking and warping rotors.
The central hat section of each Girodisc is made from 6061-T6 aircraft specification aluminum. The disc is manufactured from cast iron constructed in the USA, made to the same specification with the same material used by professional racing organizations. The rotors' curved vane design was developed in racing and acts as a centrifugal pump to force cooling air through the disc.
The rotor and hat mount together through a floating mount system which utilizes ten 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 the brake action while maintaining the axial and radial float between the disc rotor and hat. The pins are secured by class 12.9 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 two-piece Girodisc design allows for disc-only replacement as well, minimizing future replacement costs and delivering outstanding performance.
Sold/priced per pair.
GiroDisc Racing Brakes & Technologies
A1-276 Girodisc 2pc Front Brake Rotors for Porsche 992 GT3/GT3RS (OEM PCCB)
$2,728.00
A1-276 Girodisc Porsche 992 GT3 PCCB Front Iron Rotor Conversion
These Girodisc 2‑piece front rotors convert 992 GT3 cars with PCCB (carbon ceramic) to iron rotors. Use the same pad shape as the 991 GT3 iron setup (smaller annulus than PCCB) for better pad availability and weight control. The rotors bolt to OEM hubs and work with factory calipers and ABS.
A1-276 Girodisc 2pc Front Brake Rotor Vehicle Fitment
Porsche 992 GT3 with PCCB – Front (iron conversion; use 991 GT3 iron pad shape)
Design & Cooling
USA‑poured high‑carbon iron rings with curved vanes provide excellent heat capacity. The 6061‑T6 aluminum hats are anodized and reuseable; floating hardware uses spring preload to control noise and thermal growth.
A1-276 Girodisc 2pc Front Brake Rotor Features
Direct bolt‑on conversion; factory calipers retained
Optimized annulus for performance pad selection
2‑piece floating construction to manage heat and mass
Serviceable with ring‑only replacements
Sold/priced per pair
GiroDisc Racing Brakes & Technologies
A1-278 Girodisc Ferrari Portofino, Roma Front Iron Rotor Conversion
$2,791.00
A1-278 Girodisc Ferrari Portofino, Roma Front Iron Rotor Conversion
These Girodisc A1-278 2-piece front rotors convert Ferrari Portofino and Roma models from factory carbon‑ceramic to high‑performance iron. Floating construction reduces running costs and retains factory calipers and ABS (use iron‑rated pads).
Vehicle Fitment
Ferrari Portofino – Front (iron conversion)
Ferrari Roma – Front (iron conversion)
High‑Carbon Iron & Floating Hardware
Proprietary high‑carbon iron rings with curved vanes improve cooling and thermal stability. Reusable aluminum hats accept replacement rings for cost‑effective service.
Features
Direct bolt‑on with factory calipers
2‑piece floating design
Use iron‑rated pad compounds
Manufactured and assembled in Bellingham, WA
Sold/priced per pair
GiroDisc Racing Brakes & Technologies
A1-282 Girodisc BMW G8X M2, M3, M4 380mm Front Rotors
$1,889.00
A1-282 Girodisc 380mm Front Rotors
Price: $810.00
These Girodisc A1-282 2-piece front rotors are a direct bolt-on for the G87 M2, G80/G81 M3, and G82/G83 M4 without carbon ceramic brakes. Fully floating construction reduces unsprung/rotational mass while improving cooling, and they retain the factory calipers, ABS logic, and brake bias.
Vehicle Fitment
BMW G87 M2 (non-CCB) – Front
BMW G80/G81 M3 (non-CCB) – Front
BMW G82/G83 M4 (non-CCB) – Front
High-Carbon Rings, 72 Curved Vanes
The rotor rings are machined from high-carbon iron to Girodisc specifications. 72 curved vanes act as a centrifugal pump, drawing air through the hub for efficient heat rejection during repeated hard stops. The 2-piece design allows you to reuse the aluminum hats and refresh with D1-282 rings later.
Features
Direct OE replacement for 380 mm front rotors (non-CCB)
2-piece floating design reduces unsprung weight
High-carbon iron rings; reusable 6061-T6 aluminum hats
72 curved vanes for strong airflow and cooling
Assembled with cadmium-plated pins, spring clips, Belleville washers
Manufactured and assembled in Bellingham, WA
Sold/priced per pair
A1-282 FAQs
Minimum service thickness? Replace when rings reach 34 mm or sooner if a crack reaches the edge.
Do I need new calipers or brackets? No — bolts to factory hubs and works with OE calipers.
Which replacement rings match? D1-282 (380×34) front replacement rings.
Pad compatibility? Works with OE-shape pads and performance compounds; bed per pad manufacturer.
Related Products
D1-282 Girodisc BMW G8X 380mm Front Replacement Rings
A2-282 Girodisc BMW G8X M2, M3, M4 370mm Rear Rotors
D2-282 Girodisc BMW G8X 370mm Rear Replacement Rings
GiroDisc Racing Brakes & Technologies
A1-284 Girodisc Acura TLX Type S Front Rotors
$1,749.00
A1-284 Girodisc Acura TLX Type S Front Rotors
These Girodisc A1-284 2-piece front rotors are a direct replacement for the 2021+ Acura TLX Type S. At ~21.85 lb per rotor (vs ~25.8 lb stock), the floating assemblies reduce unsprung and rotating mass while retaining OEM calipers and ABS.
Vehicle Fitment
Acura TLX Type S (2021+) – Front
High-Carbon Rings & 48‑Vane Cooling
Rings are machined from proprietary high‑carbon iron and use 48 curved vanes to pull air through the hub for effective cooling. Reusable aluminum hats accept D1‑284 rings at service time.
Features
Direct OE replacement; no modifications required
2‑piece floating design reduces unsprung & rotational mass
6061‑T6 anodized hats; cadmium‑plated hardware
Manufactured and assembled in Bellingham, WA
Minimum ring thickness: 28 mm
Sold/priced per pair
GiroDisc Racing Brakes & Technologies
A1-287 Girodisc Porsche 992 GT3 Cup Front Rotors
$2,448.00
A1-287 Girodisc Porsche 992 GT3 Cup Front Rotors
These Girodisc A1-287 2-piece front rotors are a direct replacement for the Porsche 992 GT3 Cup iron-brake setup. Fully floating construction reduces unsprung and rotational mass while keeping OEM calipers, ABS, and brake bias intact.
A1-287 Girodisc Porsche 992 GT3 Cup Front Rotor Vehicle Fitment
Porsche 992 GT3 Cup – Front
High-Carbon Rings & Curved-Vane Cooling
Proprietary high‑carbon iron rings with curved internal vanes act as a centrifugal pump to draw cooling air through the disc during heavy use. Reusable aluminum hats accept replacement rings when service is due.
A1-287 Girodisc Porsche 992 GT3 Cup Front Rotor Features
Direct OE replacement; no modifications required
2‑piece floating design reduces unsprung & rotational mass
6061‑T6 aluminum hats; cadmium‑plated hardware
Manufactured and assembled in Bellingham, WA
Sold/priced per pair
GiroDisc Racing Brakes & Technologies
A1-288 Girodisc VW Golf R (Mk8), Audi 8Y S3 Front Rotors
$1,539.00
Girodisc VW Golf R (Mk8), Audi 8Y S3 Front Rotors
Upgrade your Volkswagen Golf R or Audi S3 braking system with Girodisc lightweight two-piece front rotors. Designed for precision, durability, and cooling efficiency, these rotors deliver sharper response and reduced fade for both spirited street driving and demanding track sessions. The fully floating design reduces unsprung and rotating mass, improving handling and braking control without altering factory balance or ABS performance.
Vehicle Fitment
Compatible with:• Volkswagen Golf R (Mk8, 2022+)• Audi S3 (8Y, 2022+)Direct OEM replacement – bolts to factory hubs and calipers, no modifications required.Sold and priced per pair.
Race-Developed, Street-Refined Performance
Each Girodisc 2-piece rotor assembly replaces the factory one-piece iron disc with a lightweight floating design. The friction rings are machined from Girodisc’s proprietary high-carbon iron casting, developed for exceptional strength and thermal stability under high-stress braking. The 72 curved vanes function as internal air pumps, drawing cool air through the disc for maximum heat dissipation and fade resistance. Paired with CNC-machined 6061-T6 aluminum hats finished in black anodize, these rotors strike the perfect balance between weight reduction and durability.
Features
• Direct OEM replacement for VW Golf R (Mk8) and Audi 8Y S3 front rotors• Two-piece floating design reduces unsprung and rotational mass• CNC-machined 6061-T6 aluminum hats, black anodized for corrosion resistance• Proprietary high-carbon cast iron rotor rings for improved heat control• 72 curved cooling vanes efficiently manage thermal load• Fully rebuildable – reuse hats with replacement rings (P/N D1-288)• Precision-assembled using cadmium-plated hardware and spring clip float control• Made and assembled in Bellingham, WA from U.S.-sourced materials• Minimum recommended ring thickness: 32mm
Specifications
• Application: Front axle• Material: High-carbon cast iron with 6061-T6 aluminum hat• Vane count: 72 curved directional• Replacement ring part number: D1-288• Made in the USA• Sold/priced per pair
Girodisc A1-288 Front Rotor FAQs:
Do these rotors fit both the Mk8 Golf R and 8Y Audi S3? Yes. The A1-288 Girodisc rotors are designed for direct fitment on both the Volkswagen Golf R Mk8 and the Audi S3 8Y chassis, using factory calipers and hardware.
How much weight do these rotors save? The two-piece design significantly reduces unsprung weight compared to OEM rotors, improving steering feedback and suspension responsiveness.
Can the iron rings be replaced? Yes. Girodisc rotors are fully rebuildable—simply reuse the aluminum hats and install new rings (part number D1-288) when the originals reach minimum thickness or wear limits.
Are these rotors suitable for track days? Absolutely. Girodisc rotors are engineered for motorsport-level heat management while remaining quiet and reliable for street use, offering the best balance of performance and longevity.
Upgrade your Golf R or S3 with Girodisc two-piece rotors to experience unmatched stopping precision, reduced weight, and consistent performance lap after lap.
GiroDisc Racing Brakes & Technologies
A1-291 Girodisc 2pc Front Brake Rotors for Porsche Cayman GT4RS (oem steel)
$2,728.00
A1-291 Girodisc Porsche 718 GT4 RS Front Rotors (408×36 mm)
Price: $1,950.00
These Girodisc A1-291 2-piece front rotors are a direct replacement for the Porsche 718 GT4 RS with the factory iron brake system. Weighing about ~29 lb per rotor, the fully floating design reduces unsprung/rotational mass while retaining OEM calipers, ABS, and brake bias.
Vehicle Fitment
Porsche 718 Cayman GT4 RS (982) – Front, OEM iron brakes (not PCCB)
High-Carbon Rings & Curved-Vane Cooling
The rotor rings are machined from a proprietary high-carbon iron casting for durability and heat capacity. Curved internal vanes (72-vane) act as a centrifugal pump to pull cooling air through the disc under hard use. The 2-piece construction allows reuse of the aluminum hat with D1-291 replacement rings.
Dimensions
Diameter: 408 mm
Thickness: 36 mm
Weight: ~29 lb per rotor assembly
Features
Direct OEM replacement; no modifications required
2-piece floating design reduces unsprung & rotational mass
Reusable 6061-T6 aluminum hats; cadmium-plated hardware
Manufactured and assembled in Bellingham, WA
Sold/priced per pair
A1-291 FAQs
Does this fit PCCB cars? No — this listing is for cars with OEM iron rotors.
Minimum service thickness? Replace when rings reach 34 mm, or earlier if a crack reaches the outer edge.
Which replacement rings? D1-291 (pair, with hardware) for Girodisc hats.
GiroDisc Racing Brakes & Technologies
A1-294 Girodisc Maserati MC20 Front Rotors
$2,658.00
A1-294 Girodisc Maserati MC20 Front Rotors
These Girodisc A1-294 2-piece front rotors are a direct bolt-on for the Maserati MC20 with factory carbon-ceramic front brakes. The floating design reduces unsprung/rotational mass while retaining OEM calipers and ABS.
Vehicle Fitment
Maserati MC20 – Front (PCCB / carbon-ceramic equipped)
Curved-Vane Cooling & Durable Rings
The rings are machined from proprietary high-carbon iron and use curved internal vanes that act as a centrifugal pump to pull cooling air through the rotor. The 2-piece floating construction lets you reuse the aluminum hat and swap rings easily.
Features
Direct replacement for MC20 factory carbon-ceramic front rotors
2-piece floating design reduces unsprung & rotational mass
Reusable 6061-T6 aluminum hats; new hardware included
Cadmium-plated high-strength drive pins, clips, Belleville washers
Manufactured and assembled in Bellingham, WA
Sold/priced per pair
A1-294 FAQs
Does this work for steel brake versions? No — this is for the factory carbon-ceramic (PCCB) front setup.
Need new calipers or coding? No — bolts to OEM hubs and retains ABS settings.
GiroDisc Racing Brakes & Technologies
A1-298 Girodisc Audi 8Y RS3 Front Rotors
$1,609.00
A1-298 Girodisc Audi 8Y RS3 Front Rotors
These Girodisc A1-298 2-piece slotted front rotors are a direct bolt-on for the 2022+ Audi RS3 (8Y) with factory iron brakes. Floating construction reduces unsprung and rotational mass while preserving OE calipers, ABS, and brake bias. (For cars optioned with front carbon-ceramic brakes, see the separate Iron Conversion kit A1-355.)
Vehicle Fitment
Audi RS3 (8Y) 2022+ – Front
Direct fit for OEM iron-brake cars. For PCCB/CCB cars, use the dedicated Iron Conversion listing.
High-Carbon Rings & Curved-Vane Cooling
Proprietary high-carbon iron rings and curved internal vanes act as a centrifugal pump to pull cooling air through the rotor. Spring-preloaded floating hardware allows thermal growth while minimizing noise for street use.
Features
Direct OE replacement; no modifications required
2-piece floating design reduces unsprung/rotational mass
High-carbon iron rings; reusable 6061-T6 aluminum hats
Cadmium-plated high-strength hardware with spring clips & Belleville washers
Manufactured and assembled in Bellingham, WA
Sold/priced per pair
A1-298 FAQs
Does this fit carbon-ceramic (PCCB/CCB) cars? No — for CCB cars use the A1-355 Front Iron Conversion.
Do I need new calipers or brackets? No — the rotors bolt to OE hubs and work with the factory calipers.
GiroDisc Racing Brakes & Technologies
A1-302 Girodisc Lamborghini Huracán STO Front Iron Rotor Conversion
$2,791.00
A1-302 Girodisc Lamborghini Huracán STO Front Iron Rotor Conversion
These Girodisc A1-302 2-piece rotors directly replace the factory carbon-ceramic front rotors on the Lamborghini Huracán STO. They reuse the OEM calipers and require the D1130 pad shape (iron-rotor friction compound recommended). Replacement rings later: D1-302.
Vehicle Fitment
2021+ Lamborghini Huracán STO (front, CCB-equipped)
High-Carbon Rings, 72 Curved Vanes
Proprietary high-carbon iron with 72 curved vanes acts as a centrifugal pump to pull cooling air through the disc. Floating hardware with spring preload controls thermal growth and keeps street noise low.
Features
Direct CCB-to-iron conversion; OEM calipers retained
2-piece floating design reduces unsprung/rotational mass
Reusable 6061-T6 aluminum hats; new hardware included
72-vane internal geometry for strong airflow
Manufactured and assembled in Bellingham, WA
Sold/priced per pair
A1-302 FAQs
Which pads do I use? D1130 pad shape in an iron-rotor compound.
Any coding or spacers? No coding or spacers required for STO; designed for OEM calipers.
Minimum thickness? Replace front rings at 32 mm or sooner if a crack reaches the edge.
Related Products
D1-302 Girodisc Lamborghini Huracán STO Front Replacement Rings
A2-302 Girodisc Lamborghini Huracán STO Rear Iron Rotor Conversion
D2-302 Girodisc Lamborghini Huracán STO Rear Replacement Rings
GiroDisc Racing Brakes & Technologies
A1-306 Girodisc Porsche 992 GT3, GT3 RS Front Rotors (36mm)
$2,728.00
A1-306 Girodisc Porsche 992 GT3, GT3 RS Front Rotors (36mm)
These Girodisc A1-306 2-piece front rotors are a direct bolt-on for Porsche 992 GT3 and 992 GT3 RS with 36 mm-thick steel front rotors (not for PCCB). Floating construction reduces unsprung and rotational mass while preserving OE calipers, ABS, and brake bias.
Vehicle Fitment
Porsche 911 (992) GT3 – Front, 36 mm steel rotors (non-PCCB)
Porsche 911 (992) GT3 RS – Front, 36 mm steel rotors (non-PCCB)
Not compatible with PCCB (carbon-ceramic) brake packages.
High-Carbon Rings & Curved-Vane Cooling
The rings are machined from Girodisc’s proprietary high-carbon iron and use curved internal vanes that act as a centrifugal pump to pull cooling air through the rotor. Spring-preloaded floating hardware allows thermal expansion while minimizing noise for street use.
Features
Direct OE replacement; no modifications required
2-piece floating design reduces unsprung/rotational mass
High-carbon iron rings; reusable 6061-T6 aluminum hats
Cadmium-plated high-strength drive pins, clips, Belleville washers
Manufactured and assembled in Bellingham, WA
Sold/priced per pair
A1-306 FAQs
Does this fit PCCB cars? No. This listing is for 36 mm steel-rotor cars; PCCB uses different discs.
Do I need new calipers or brackets? No — the rotors bolt to OE hubs and work with the factory calipers.
Are replacement rings available? Contact us for availability; rings are sold in pairs for Girodisc hats only.
GiroDisc Racing Brakes & Technologies
A1-307 Girodisc 2 Pc Front Brake Rotors (348mm)
$1,609.00
A1-307 Girodisc Toyota GR Supra, BMW 348mm Front Rotors
Price: $1,150.00
These Girodisc A1-307 2-piece front rotors are a direct bolt-on for the Toyota GR Supra 3.0 and BMW G-chassis models equipped with a 348 mm front rotor. Floating construction trims unsprung/rotational mass while preserving OE caliper/ABS function. Replacement rings: D1-307.
Vehicle Fitment
Toyota GR Supra 3.0 (A90/A91) – Front
BMW G20/G21 M340i – Front
BMW G22/G23 M440i – Front
BMW G20/G22 with optional M Sport brakes – Front
BMW G01 X3 M40i & G02 X4 M40i – Front
BMW G29 Z4 M40i – Front
Above applications reflect the 348 mm front rotor package on G-chassis cars.
High-Carbon Rings, 72 Curved Vanes
Proprietary high-carbon iron rings use 72 curved vanes to pull cooling air through the hub for stable temperatures under repeated hard stops. Reusable 6061-T6 hats and cadmium-plated hardware maintain quiet, street-friendly float.
Features
Direct OE replacement; no modifications required
2-piece floating design reduces unsprung/rotational mass
High-carbon iron rings; reusable aluminum hats
72-vane internal geometry for strong airflow
Manufactured and assembled in Bellingham, WA
Sold/priced per pair
A1-307 FAQs
Minimum service thickness? Replace front rings at 34 mm or sooner if a crack reaches the edge.
Do these require new calipers? No — they bolt to OE hubs and run with factory calipers/ABS.
Which rings fit later? D1-307 front replacement rings.
Related Products
D1-307 Girodisc Toyota GR Supra, BMW 348mm Front Replacement Rings
A2-307 Girodisc Toyota GR Supra, BMW 345mm Rear Rotors
D2-307 Girodisc Toyota GR Supra, BMW 345mm Rear Replacement Rings
