R1 Concepts 623-31012L RNC eLINE Black Series Drilled Brake Rotor - Left

The R1 Concepts 623-31012L RNC Drilled Brake Rotor is a left-side replacement disc rotor from R1 Concepts' eLINE Black Series. Engineered for drivers who want improved braking performance over stock without sacrificing daily drivability, this precision-drilled rotor delivers enhanced heat dissipation and consistent stopping power in a sleek blacked-out finish.

Key Features:

• Precision Cross-Drilled Holes: Countersunk drill holes allow heat and gas to escape efficiently, reducing rotor temperature and minimizing brake fade under hard braking
• eLINE Black Series Finish: Special zinc-plated black coating protects against corrosion for improved appearance, longer service life, and reduced maintenance costs
• Double Disc Ground Braking Surface: Promotes faster, more even brake pad bed-in and delivers a quieter, smoother stopping performance
• Direct-Fit Replacement: Engineered as a drop-in replacement requiring no modifications for installation
• Left-Side Fitment: Designed specifically for the driver-side (left) position — verify fitment before ordering
• High-Carbon Construction: Provides superior strength, better heat absorption, and reduced noise compared to standard rotors

R1 Concepts recommends replacing brake pads whenever new rotors are installed. A proper break-in (bed-in) procedure should be followed after installation to ensure optimal performance and longevity. The black zinc coating on the braking surface will naturally wear off during the initial bed-in process — this is normal and expected.