Dynamic Friction 4522-31061 GeoSpec Coated Drilled Disc Brake Rotor

The Dynamic Friction Company 4522-31061 is a GeoSpec Coated Cross-Drilled disc brake rotor engineered as a direct OE replacement with enhanced corrosion resistance and improved thermal performance. Built to meet the same form, fit, and function as original equipment, this rotor is ready to install straight out of the box with no additional prep required.

The proprietary GeoSpec coating forms a durable, attractive silver-gray finish across the entire rotor surface — including the hat and vanes — providing superior rust and corrosion protection compared to conventional paint or zinc coatings. The coating is safely swept away by the friction material during normal braking with no harmful effects.

Key Features:

• Premium G3000/G11H18 iron casting for exceptional strength, stability, and long-term durability
• Cross-drilled holes reduce heat buildup on the rotor surface for consistent fade-resistant braking
• Chamfered drill holes minimize stress concentration and reduce the potential for cracking under repeated thermal cycling
• GeoSpec corrosion-resistant coating outlasts conventional paint and zinc coatings — processed dry and shipped dry, ready to install
• OE vane configuration ensures proper and maximum heat dissipation matching original equipment airflow design
• CNC-machined to tight tolerances for precise fit and reliable performance
• 100% precision cut and mill-balanced for smooth, vibration-free stopping at any speed
• Non-directional surface finish promotes faster pad bed-in and consistently smooth stops

The Dynamic Friction 4522-31061 GeoSpec Drilled rotor is ideal for drivers seeking a step up in corrosion protection and cooling performance over a standard blank replacement rotor, while maintaining OE-quality fitment and reliability.