R1 Concepts 830-80046R DFC GeoPerf Drilled Slotted Disc Brake Rotor

The R1 Concepts 830-80046R DFC GeoPerformance Drilled and Slotted Brake Rotor is a high-performance disc brake rotor engineered for drivers who demand superior stopping power and long-term durability. Manufactured by Dynamic Friction Company (DFC), this rotor combines cross-drilled holes and precision slots to maximize braking performance in both everyday and demanding driving conditions.

The drilled holes work to dissipate heat that builds up on the rotor surface during braking, while the slots increase bite between the rotor and brake pads, delivering shorter stopping distances — especially in wet weather. The directional brake surface design ensures optimal pad contact and consistent, fade-resistant performance.

Key Features:

• Cross-Drilled & Slotted Design — Reduces heat buildup and improves pad bite for enhanced stopping power
• GEOSPEC Corrosion Protection Coating — Silver-gray finish provides superior rust resistance compared to conventional paint or zinc coatings
• Ready to Install — Processed dry and shipped dry; no cleaning or additional prep required before installation
• Directional Brake Surface — Optimized rotor geometry for consistent, balanced braking performance
• 100% Electronic Inspection — Every rotor passes a multi-attribute electronic inspection station measuring over 20 attributes to ensure OE specification compliance
• Solid Rotor Construction — Solid vane design built to OE-equivalent standards
• Outside Diameter: 314 mm
• Nominal Thickness: 11 mm | Discard Thickness: 9 mm
• Center Hole Diameter: 72 mm | Overall Height: 41 mm
• Meets California Proposition 65 requirements

The DFC GeoPerformance rotor line is built to deliver reliable, high-quality stopping power right out of the box. The GEOSPEC finish protects the hub and non-braking surfaces from corrosion throughout the life of the part, maintaining a clean, professional appearance behind your wheels.