Dynamic Friction 4522-31118 GeoSpec Coated Plain Disc Brake Rotor

The Dynamic Friction Company 4522-31118 is a GeoSpec Coated Plain (smooth) Disc Brake Rotor engineered to deliver OE-quality braking performance with superior corrosion resistance. Part of DFC's industry-leading GeoSpec coated rotor program, this rotor features a patented coating that forms a durable, attractive silver-gray finish — fighting rust far more effectively than conventional paint or zinc coatings.

Key Features:

• GeoSpec Patented Coating — Fully coated inside and out with a rust-preventing finish that outlasts conventional paint and zinc treatments
• Premium G3000/G11H18 Iron Castings — Engineered for superior strength, stability, and long-term durability
• OE Vane Configuration — Matches original equipment vane design for proper and maximum heat dissipation
• CNC-Machined to Tight Tolerances — Precision machining ensures a perfect OE-spec fit with no modifications required
• 100% Mill-Balanced — Precision cut and electronically balanced for smoother stopping and zero vibration at any speed
• Non-Directional Finish — Promotes a faster, more even brake pad bed-in process and quieter, smoother stops
• Ready to Install — Processed dry and shipped dry; no pre-cleaning or degreasing required, saving time and money during installation
• 100% Inspected — Every rotor passes a full inspection station measuring all critical attributes to confirm OE specification compliance

The GeoSpec coating is designed not to contaminate friction or rotor surfaces, ensuring proper braking bed-in and consistent wear characteristics over the life of the rotor. This plain-style rotor is ideal for everyday passenger car and light truck applications where reliable, quiet, and vibration-free stopping power is the priority.