Dynamic Friction 644-31090 GeoSpec Dimpled and Slotted Brake Rotor

The Dynamic Friction 644-31090 GeoSpec Dimpled and Slotted Brake Rotor delivers high-performance braking with advanced corrosion protection. Featuring both dimpling and slotting machining, this rotor combines enhanced ventilation with improved pad bite to reduce brake fade and promote consistent stopping power across a wide range of driving conditions.

GeoSpec Corrosion Protection Coating:

Each rotor features Dynamic Friction's proprietary GeoSpec coating, which forms a durable silver-gray finish that fights rust far better than conventional paint or zinc coatings. The rotor is processed dry and shipped dry, ready to install without any additional cleaning or preparation. This eliminates the time-consuming step of cleaning oil-covered rotors and saves valuable installation time.

Key Features:

• Dimpled and slotted design for enhanced ventilation and improved pad bite
• Engineered with premium G3000/G11H18 iron castings for superior strength, stability, and durability
• GeoSpec protective coating provides excellent corrosion resistance
• Mill-balanced for smooth, vibration-free stopping performance
• Non-directional finish promotes faster and more even brake pad bed-in
• Ready to install—no cleaning required
• Machined to tight tolerances for precise fitment
• Direct OEM replacement design

The protective GeoSpec coating is safely swept away by the brake pad friction material during initial use with no harmful effects, leaving the machined braking surface for optimal performance. Built to OEM specifications for direct fitment with no modifications required.