R1 Concepts 623-32016L RNC Series Drilled Disc Brake Rotor - Left

The R1 Concepts 623-32016L RNC Series Drilled Brake Rotor is a precision-engineered replacement disc rotor designed to deliver reliable stopping power and improved thermal management over a standard OEM rotor. This is the left (driver) side rotor, sold individually.

Constructed from G3000 grade cast iron, the RNC rotor meets OEM dimensional specifications for a direct bolt-on installation with no modifications required. The cross-drilled hole pattern promotes efficient heat dissipation, helps reduce brake fade during repeated or heavy stops, and keeps the rotor surface cleaner by allowing gas, dust, and debris to escape.

Key Features:

• Cross-Drilled Design – Precision-drilled holes improve ventilation and heat dissipation, reducing the risk of brake fade
• G3000 Cast Iron Construction – High-quality iron formulation for durability and consistent braking performance
• Zinc Coated Finish – Protects non-braking surfaces from rust and corrosion for a cleaner, longer-lasting appearance
• OEM Fitment – Engineered to OEM specifications for a direct, no-modification installation
• Left Side (Driver Side) – Sold as a single rotor; confirm your application requires this side before ordering
• Vented Design – Internal vane structure promotes continuous airflow for sustained braking performance

The R1 Concepts RNC Series is an excellent choice for drivers seeking a drilled performance upgrade over stock rotors without moving to a full slotted design. Compatible with standard OEM-style brake pads; always replace brake pads when installing new rotors and follow proper bed-in procedures for optimal performance and longevity.