D1-224 Girodisc Alfa Romeo Giulia, Stelvio QV Front Replacement Rings
Enhance the precision and consistency of your Alfa Romeo Quadrifoglio’s braking system with Girodisc D1-224 380 mm front replacement rings. These high-performance rings bolt directly to your existing Girodisc aluminum hats using the included floating hardware kit. Cast from Girodisc’s proprietary high-carbon iron alloy, they deliver excellent heat management, reduced fade, and consistent pedal feel during aggressive street or track driving.
Vehicle Fitment
Compatible with:
• Alfa Romeo Giulia Quadrifoglio (2017+) – front axle
• Alfa Romeo Stelvio Quadrifoglio (2018+) – front axle
Note: Designed exclusively for Girodisc 380 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 380 mm two-piece front rotors
• CNC-machined from high-carbon cast iron for durability and thermal stability
• Directional curved vanes maximize airflow and heat dissipation
• Maintains factory brake bias and ABS calibration
• Designed exclusively for Girodisc aluminum hats – not compatible with OEM or other brands
Specifications
• Diameter: 380 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 D1-224 Alfa Romeo Giulia / Stelvio QV Front Replacement Ring FAQs
Are these compatible with the factory carbon-ceramic brake option? No. The D1-224 rings are designed for steel Girodisc two-piece systems only and will not fit the OEM carbon-ceramic setup.
Will these rings change pedal feel or braking balance? Not at all. They maintain factory brake bias and deliver a firmer, more consistent pedal feel thanks to the floating rotor design.
Can I use these for both daily driving and track days? Yes. They’re quiet and smooth on the street but engineered to handle repeated high-temperature stops during spirited or track use.
Do these require special installation or bedding procedures? Standard bedding is recommended — gradually heating the pads and rotors through a few controlled stops ensures even pad transfer and optimal braking performance.
Upgrade your Alfa Romeo Giulia or Stelvio Quadrifoglio with Girodisc D1-224 380 mm front replacement rings — precision-engineered for cooling, longevity, and repeatable braking performance on road or track.
