Girodisc GD380.32.52 380x32mm Replacement Rotor Rings (D52)
The Girodisc GD380.32.52 Replacement Rotor Rings (D52) are designed as direct replacements for worn rotor rings in your existing Girodisc two-piece brake system. Manufactured in-house to the same exacting standards as all Girodisc components, these 380x32mm rings restore your braking performance while allowing you to reuse your original aluminum hats and hardware.
Restore Peak Braking Performance
Each Girodisc replacement ring is cast from Girodisc’s proprietary iron alloy in the USA and precision machined to exacting tolerances. The curved vane internal design functions as a centrifugal air pump, improving airflow and heat dissipation to keep temperatures consistent lap after lap. These replacement rings include new hardware and are ready to bolt directly onto your existing Girodisc hats.
Features
• Size: 380mm x 32mm (D52)
• Direct replacement rotor rings for Girodisc two-piece systems
• Compatible with Girodisc aluminum hats using D52 pattern
• Proprietary cast iron alloy poured and machined in the USA
• Curved vane internal geometry for maximum cooling efficiency
• Includes new hardware kit for installation
• Reuses existing aluminum hats
• Sold/priced per pair
Vehicle Fitment
The Girodisc GD380.32.52 Replacement Rotor Rings (D52) fit multiple Girodisc brake systems used on high-performance vehicles, including:
• Porsche 997.2 Turbo / Turbo S
• Porsche 991 Carrera / Carrera S (with Girodisc 380mm upgrade kit)
• Audi R8 V8 / V10 (with Girodisc 380mm rear kit)
• McLaren 540C / 570S / 570GT (with Girodisc D52-based systems)
• BMW F8X M2 / M3 / M4 (with Girodisc 380mm retrofit kits)
Always confirm your hat pattern and bolt circle match the D52 specification before ordering.
Girodisc GD380.32.52 380x32mm Replacement Rotor Rings (D52) FAQs
What is included with these replacement rings? The kit includes two 380x32mm iron rotor rings (left and right) along with all new hardware for installation.
Can I reuse my existing aluminum hats? Yes. These replacement rings are designed to bolt directly to your Girodisc aluminum hats using the provided hardware.
Are the rings directional? Yes. Each rotor has directional curved vanes—ensure left and right sides are installed correctly for proper cooling airflow.
What materials are used? The rings are made from Girodisc’s proprietary cast iron alloy, known for high heat capacity, durability, and consistent friction performance.
Do these fit OEM or other aftermarket hats? No. Girodisc replacement rings are engineered specifically for Girodisc hats and may not fit other brands’ hardware or bolt patterns.
Are they sold individually or as a set? The Girodisc GD380.32.52 380x32mm Replacement Rotor Rings (D52) are sold and priced per pair, including all required installation hardware.
Maintain peak braking performance with genuine Girodisc GD380.32.52 Replacement Rotor Rings (D52)—crafted in the USA for reliability, strength, and precision fitment.
