Girodisc Acura NSX Front Replacement Rings
Bring your Acura NSX braking system back to peak performance with Girodisc 370mm front replacement rings. Designed as direct replacements for existing Girodisc two-piece rotor assemblies, these high-carbon iron rings deliver the heat control, balance, and precision stopping power the NSX platform demands.
Vehicle Fitment
Compatible with:
• 2017–2022 Acura NSX (NC1)
• 1991–2005 Acura NSX (with Girodisc or comparable 370mm big brake kit)
Note: These are friction rings only. They attach directly to existing Girodisc aluminum hats using the supplied hardware kit.
Engineered for Performance and Longevity
Each Girodisc replacement ring is made from a proprietary high-carbon cast iron alloy, developed to handle the extreme heat and stress of performance driving. Precision-machined and balanced in the USA, these rings feature a curved vane internal design that acts as a centrifugal air pump, drawing air through the rotor to maintain consistent cooling under high-speed braking. Whether you’re on canyon roads or the track, Girodisc ensures consistent pedal feel and fade-free braking.
Features
• Direct replacement for 370mm Girodisc front rotor assemblies
• Designed for Acura NSX (NC1) and earlier models with Girodisc big brake kits
• High-carbon iron construction for thermal stability and durability
• Curved directional vanes improve airflow and cooling
• Machined, balanced, and finished in the USA
• Includes new floating hardware kit
• Sold/priced per pair
Specifications
• Diameter: 370mm
• Position: Front
• Material: High-carbon cast iron
• Includes: Two rotor rings and full hardware kit
• Made in the USA
• Sold/priced per pair
Girodisc D1-174 Replacement Ring FAQs
Are these compatible with OEM NSX rotors? No. These replacement rings are designed specifically for Girodisc two-piece rotor systems or equivalent aluminum-hat setups.
Do they include hardware? Yes. Each pair ships with a complete hardware kit including floating pins, washers, and bolts.
Will these work on both first- and second-generation NSX models? They fit directly on the second-gen NSX (NC1) and first-gen models equipped with Girodisc 370mm rotor systems or compatible hats.
Are these suitable for track driving? Absolutely. Girodisc rotors are built for high-performance and endurance use, maintaining stable braking through repeated high-heat cycles.
Restore the legendary stopping power of your NSX with Girodisc D1-174 370mm front replacement rings — precision-engineered, American-made, and built for uncompromising performance.
