R1 Concepts 623-65013L RNC Drilled Disc Brake Rotor - Left

The R1 Concepts 623-65013L RNC Drilled Brake Rotor is a precision-engineered replacement disc brake rotor designed for direct OEM fitment. Part of R1 Concepts' RNC (R1 Nano Coating) series, this left-side rotor features a protective nano-zinc coating that guards against rust and corrosion for a longer service life and cleaner appearance behind the wheel.

Key Features:

• Drilled Design: Precision-drilled holes are countersunk to maximize heat dissipation, reduce brake fade, and help prevent stress cracking under repeated thermal cycling
• RNC Nano-Zinc Coating: Advanced nano-zinc surface treatment protects the rotor hat, vanes, and non-friction surfaces from corrosion — extending rotor life and maintaining appearance
• G3000 Grade Cast Iron Construction: Manufactured from high-grade G3000 cast iron for consistent stopping power, durability, and OEM-comparable performance
• Direct-Fit Replacement: Engineered to OEM specifications for a no-modification, bolt-on installation
• Improved Ventilation: Vented internal vane structure promotes airflow through the rotor to manage heat buildup during demanding brake cycles
• Left Side (Driver Side): This is a single rotor for the left/driver's side position — verify your vehicle's application before ordering

The R1 Concepts RNC series offers an ideal balance of performance and value for daily drivers seeking a reliable, corrosion-resistant upgrade over standard OEM rotors. Always replace brake pads when installing new rotors and follow the recommended bed-in procedure for optimal performance and pad seating.