R1 Concepts 830-63165L DFC GeoPerf Drilled & Slotted Brake Rotor

The R1 Concepts 830-63165L is a DFC GeoPerf Series drilled and slotted brake rotor engineered for drivers who demand superior stopping power and thermal performance. Featuring R1 Concepts' precision geometric perforation and slotting pattern, this rotor delivers consistent fade resistance and improved bite under demanding driving conditions.

Key Features:

• Drilled & Slotted Design: Cross-drilled holes reduce unsprung weight and aid in heat dissipation, while slots continuously sweep the brake pad surface clean of gas, dust, and debris
• GeoPerf Technology: Geometrically optimized perforation pattern maximizes cooling efficiency while maintaining structural integrity of the rotor
• Premium G3000 Grey Iron Casting: Meets or exceeds OEM metallurgical standards for long-lasting durability and consistent performance
• Zinc Dichromate Coating: Corrosion-resistant finish on non-contact surfaces prevents rust and extends rotor lifespan
• Precision Machined: CNC-machined to tight tolerances for smooth, vibration-free braking and optimal pad contact
• Direct OEM Replacement: Designed as a direct drop-in replacement — no modifications required
• OEM Part Cross-Reference: 830-63165L (Left/Driver Side)

The R1 Concepts DFC GeoPerf rotor is ideal for performance street driving, spirited canyon runs, and light track use. The combination of drilling and slotting keeps brake temperatures in check, reduces brake fade, and delivers confident, progressive pedal feel. Each rotor is individually balanced and inspected for quality assurance before leaving the factory.