Dynamic Friction 4802-03058 GeoSpec Coated Plain Disc Brake Rotor

The Dynamic Friction Company (DFC) 4802-03058 GeoSpec Coated Brake Rotor is a premium plain-style replacement disc brake rotor engineered to meet or exceed original equipment specifications. DFC's GeoSpec® coating is developed to form a durable and attractive silver-gray finish that fights rust far better than conventional paint or zinc coatings.

Ready to Install — No Prep Required

GeoSpec rotors are a ready-to-install part, offering complete protection from the elements before and after installation and requiring no cleaning prior to installation. An average brake job takes 1.25–2.5 hours per axle. Without the need to clean an oil-covered rotor, this saves tremendous time during the installation process, as the coating is simply and safely swept away by the friction material with no harmful effects.

Key Features:

• Engineered with premium G3000/G11H18 iron castings for strength, stability, and durability.
• Original Equipment (OE) vane configuration to ensure proper and maximum heat dissipation.
• Provides superior corrosion protection over zinc and conventional painting; CNC-machined to the tightest tolerances.
• 100% precision cut and mill-balanced for smoother stopping and zero vibration at any speed.
• Each rotor casting is processed at state-of-the-art machining facilities to the tightest tolerances available, then prepared with a non-directional finish to promote a faster and more even brake pad bed-in, along with quieter and smoother stops.
• All vented rotors are 100% inspected for balance and corrected if necessary using a state-of-the-art electronic mill-balance process.
• GeoSpec coating is designed not to contaminate friction and rotor surfaces, ensuring proper braking bed-in and wear characteristics.

After all machining processes are completed, each rotor passes a 100% inspection station that measures all critical attributes to ensure OE specifications are met, guaranteeing that every rotor delivered is trouble-free.