R1 Concepts 623-01003L RNC Series Drilled Brake Rotor - Left

The R1 Concepts 623-01003L RNC Series Drilled Brake Rotor is a direct-fit, performance-oriented replacement rotor designed for the driver's side (left) application. Engineered to OEM specifications for precise fitment, this rotor features a drilled face pattern that promotes improved heat dissipation, reduced brake fade, and cleaner braking performance under a wide range of driving conditions.

R1 Concepts manufactures this rotor from high-grade G3000 metallurgy cast iron, ensuring long-lasting durability, consistent performance, and excellent rotor integrity over time. Each rotor undergoes computer-balanced finishing to minimize vibration and is coated with a corrosion-resistant finish on non-friction surfaces to protect against rust and extend service life.

Key Features:

• Drilled face pattern for enhanced heat dissipation and reduced brake fade
• High-grade G3000 cast iron construction for OEM-level durability
• Direct OEM replacement — no modifications required for installation
• Computer-balanced for smooth, vibration-free braking
• Corrosion-resistant coating on non-contact surfaces
• Driver's side (left) fitment — sold individually
• Manufactured to meet or exceed OEM specifications

The R1 Concepts RNC drilled rotor is an excellent upgrade or replacement for drivers seeking improved thermal performance and a cleaner rotor appearance over a standard blank unit. Sold individually as the left-side rotor.