R1 Concepts 623-47015L RNC Series Drilled Disc Brake Rotor - Left

The R1 Concepts 623-47015L is a RNC Series cross-drilled disc brake rotor designed as a direct-fit replacement for the left (driver) side. Engineered to OEM specifications, this rotor installs without modification and delivers reliable, consistent stopping performance for daily driving and light performance use.

R1 Concepts rotors are manufactured from G3000 grade cast iron, providing excellent thermal stability and resistance to warping under repeated braking cycles. The cross-drilled pattern improves heat dissipation, helps evacuate gases and water from the pad-to-rotor contact surface, and reduces overall rotor weight. A silver zinc plating protects non-braking surfaces from corrosion, extending rotor life and maintaining a clean appearance behind the wheel.

Key Features:

• Cross-drilled design for improved heat dissipation and gas venting
• G3000 grade cast iron construction for strength and thermal stability
• Silver zinc plated coating on hub and vane surfaces for corrosion resistance
• Left (driver) side application — sold individually
• Direct OEM replacement fit — no modifications required
• Precision machined to strict dimensional tolerances for proper pad contact and smooth operation

The "L" suffix in the part number designates this as the left-side rotor. Refer to your vehicle's fitment data to confirm proper application before installation. A proper break-in (bedding) procedure is recommended upon installation to achieve optimal braking performance and even pad transfer film.