Girodisc Ferrari 458, 488 Challenge Rear Replacement Rings
Keep your Ferrari Challenge brakes at their best with Girodisc 458 / 488 Challenge rear replacement rings. Designed as direct replacements for existing Girodisc two-piece rotor assemblies, these 380mm iron rings deliver exceptional thermal performance and braking consistency under extreme racing conditions.
Vehicle Fitment
Compatible with:
• Ferrari 458 Challenge
• Ferrari 488 Challenge
• Ferrari 488 Challenge Evo
Note: These are replacement friction rings only. They install on existing Girodisc aluminum hats using the included hardware kit.
Race-Proven Engineering
Each Girodisc replacement ring is cast and machined in the USA using a proprietary high-carbon iron alloy for superior heat dissipation and durability. The rotor’s curved vane design functions as a centrifugal pump, pulling air through the disc to keep temperatures stable during heavy braking. This ensures consistent performance and fade resistance, lap after lap. All machining and assembly are completed in-house at Girodisc’s facility for maximum precision and quality control.
Features
• Direct replacement for Girodisc rear two-piece assemblies
• Compatible with 458, 488, and 488 Challenge Evo applications
• High-carbon cast iron resists cracking under endurance heat cycles
• Curved vane internal cooling for maximum airflow
• Precision machined and balanced in the USA
• Includes full hardware kit for installation
• Sold/priced per pair
Specifications
• Diameter: 380mm (approx.)
• Position: Rear
• Material: Proprietary high-carbon cast iron
• Includes hardware kit
• Made in the USA
• Sold/priced per pair
Girodisc D2-183 Replacement Ring FAQs
Are these compatible with OEM carbon-ceramic brakes? No. These are for vehicles equipped with Girodisc iron conversion rotors or existing Girodisc two-piece systems.
Do these rings include new hardware? Yes. Each pair ships with a complete hardware kit containing new floating pins, bolts, and washers.
Can I reuse my Girodisc hats? Absolutely. These rings are designed to mount directly to your existing aluminum hats using the supplied fasteners.
How often should I replace the rings? Replacement intervals depend on use — typically every 2–3 race seasons for endurance cars, or when the rotor reaches the minimum thickness or shows heat cracking to the edge.
Upgrade your Ferrari Challenge braking system with Girodisc D2-183 rear replacement rings — precision-engineered for maximum cooling, durability, and repeatable performance on the track.
