R1 Concepts 623-27039L RNC Series Drilled Disc Brake Rotor Left

The R1 Concepts 623-27039L RNC Series Drilled Brake Rotor is a performance-engineered replacement disc rotor designed to deliver reliable stopping power and improved thermal management over a standard OEM rotor. The cross-drilled hole pattern evacuates heat, gas, and debris from the braking surface, reducing fade during demanding driving conditions and extending brake pad life.

Key Features:

• Cross-Drilled Design: Drilled holes improve heat dissipation and help expel gases and water from the rotor face for consistent bite and fade resistance
• G3000 Grade Cast Iron Construction: High-quality cast iron provides the strength, durability, and thermal stability required for safe, long-lasting braking performance
• Zinc Dichromate Coating: Protective zinc finish guards against rust and corrosion on non-braking surfaces, maintaining a clean appearance throughout the rotor's service life
• Directional Vane Design (Left-Side Specific): The "L" designation confirms this rotor is engineered for the left/driver-side position, with internal vanes optimized for proper airflow and cooling on that corner
• OEM-Equivalent Fit: Precision-machined to OEM dimensional specifications for a direct, no-modification installation
• Pre-balanced: Factory balanced to minimize vibration and brake pedal pulsation

The R1 Concepts RNC Series drilled rotor is an ideal upgrade or direct replacement for drivers seeking improved braking performance without sacrificing everyday drivability. Compatible with standard OEM calipers and a wide range of aftermarket brake pads.