R1 Concepts 623-13037L RNC Series Drilled Brake Rotor Left

The R1 Concepts 623-13037L is a RNC Series drilled brake rotor designed for the left (driver) side of the vehicle. Engineered to OEM specifications, this rotor delivers confident stopping power with a direct-fit, no-modification-required installation.

Key Features:

• Precision Cross-Drilled Holes: Countersunk drilling enhances ventilation, dissipates heat more effectively, and helps prevent pad glazing and brake fade during demanding stops
• G3000 Grade Cast Iron Construction: High-quality base material provides strength, stability, and long-lasting durability under daily driving conditions
• Zinc Coating: Protective silver zinc plating guards against corrosion and rust, extending rotor life and maintaining a clean appearance behind the wheel
• OEM-Matched Specifications: Manufactured to original equipment dimensions for a direct-fit replacement with no drilling, cutting, or modification required
• Left-Side Application: Specifically designed for the driver-side (left) front or rear position — confirm position via vehicle fitment
• Vented Design: Internal vane structure promotes continuous airflow through the rotor for sustained thermal management during repeated braking cycles

The R1 Concepts RNC Series is a reliable upgrade or replacement option for drivers seeking improved braking performance over stock rotors. A proper bedding procedure is recommended after installation to ensure optimal pad transfer and rotor performance.