A1-268
While the OEM GR Corolla rotors feature a 2-piece design, the factory hat and friction ring cannot be separated for independent replacement. The Girodisc system improves upon this design by allowing the friction rings to be replaced independently, enabling you to reuse the original aluminum center hats when the rings reach minimum thickness — reducing long-term replacement costs.
Engineered and manufactured in the USA, Girodisc rotors are designed to reduce unsprung and overall vehicle weight while significantly improving cooling efficiency and braking performance. Each rotor weighs 3.4 lbs less than the original equipment rotor, contributing to improved handling, braking response, and suspension performance.
The system retains factory dimensions while incorporating advanced racing-derived materials and engineering for superior durability and thermal management.
True 2-Piece Serviceable Design
Replace only the friction rings when worn — reuse the aluminum hats to save money on future replacements.
Reduced Unsprung Weight
Each rotor weighs 3.4 lbs less than OEM, improving suspension response and vehicle dynamics.
6061-T6 Aircraft-Grade Aluminum Hat
Lightweight, high-strength center section for optimal durability and weight savings.
Professional-Grade Cast Iron Rings
Manufactured to the same material specifications used by professional racing organizations.
Curved Vane Cooling Design
Acts as a centrifugal pump to force air through the rotor, dramatically improving ventilation and heat dissipation.
Floating Mount System
High-strength alloy steel drive pins transfer braking loads while allowing axial and radial float.
Cadmium-Plated Hardware
Corrosion-resistant pins and Grade 12 cap screws with hardened washers ensure long-term durability.
Anti-Noise Spring Clips
Prevent cold rattle while still allowing for thermal expansion under high heat.
Self-Centering Rotor Design
Floating system allows the rotor to center between brake pads for consistent performance.
Made in the USA
