R1 Concepts 623-40112L RNC Series Drilled Brake Rotor

The R1 Concepts 623-40112L RNC Series Drilled Brake Rotor is a precision-engineered replacement disc brake rotor designed to deliver consistent stopping power and improved thermal management over standard OEM rotors. The drilled rotor design helps dissipate heat, gas, and moisture from the braking surface, reducing the risk of brake fade during demanding driving conditions.

Key Features:

• Cross-Drilled Design: Precision-drilled holes are countersunk to maximize heat dissipation, lower rotor operating temperatures, and reduce stress concentration that can lead to cracking
• RNC Series Construction: Engineered to meet or exceed OEM fitment standards for a direct-bolt-on installation with no modifications required
• Corrosion-Resistant Coating: Silver zinc plating protects the non-braking surfaces from rust and corrosion, extending rotor life and maintaining appearance
• Directional Venting: Internal vane structure promotes airflow through the rotor for continuous cooling during extended braking
• Left-Side Application: This part number (suffix "L") is specifically designed for the driver-side (left) position
• High-Quality Cast Iron: Premium grade iron construction ensures durability, longevity, and consistent braking feel

The R1 Concepts 623-40112L is a single rotor sold individually. It is compatible with the vehicle applications specified in the fitment data. For optimal performance, R1 Concepts recommends replacing rotors in axle pairs and installing fresh brake pads with a proper bed-in procedure whenever new rotors are fitted.