Dynamic Friction 4522-31201 GeoSpec Coated Plain Disc Brake Rotor

The Dynamic Friction Company (DFC) 4522-31201 GeoSpec Coated Brake Rotor is a premium plain/blank disc brake rotor engineered to deliver OE-quality braking performance with superior corrosion protection. Specially coated with DFC's patented silver-gray GeoSpec finish, this rotor resists rust and corrosion far better than conventional paint or zinc coatings — and arrives fully processed, dry, and ready to install straight out of the box.

Key Features:

• Patented GeoSpec Coating: Fully coated inside and out with a durable, attractive silver-gray finish that provides superior rust and corrosion resistance over conventional paint or zinc coatings
• Ready to Install: Processed dry and shipped dry — no pre-degreasing or cleaning required before installation, saving time and labor costs
• Premium G3000/G11H18 Iron Casting: Engineered with high-grade cast iron for exceptional strength, stability, and long-lasting durability
• OE Vane Configuration: Replicates original equipment vane geometry to ensure proper and maximum heat dissipation under demanding braking conditions
• CNC-Machined to Tight Tolerances: Precision-machined for an exact OE form, fit, and function replacement with no modifications required
• Non-Directional Finish: Promotes faster, more even brake pad bed-in for quieter and smoother stops from day one
• 100% Mill-Balanced: Every vented rotor is electronically mill-balanced and 100% inspected for balance to eliminate vibration at any speed
• Brake-In Friendly: GeoSpec coating is designed not to contaminate friction surfaces, ensuring proper brake bed-in and wear characteristics

The DFC GeoSpec rotor line covers more than 1,400 SKUs across a wide range of domestic and import passenger car and light truck applications. Each rotor passes a 100% electronic inspection station measuring over 20 critical attributes to guarantee it meets OE specifications before it leaves the factory.