R1 Concepts 623-27014L RNC Series Drilled Disc Brake Rotor Left

The R1 Concepts 623-27014L is a cross-drilled disc brake rotor from the RNC Series, designed as a direct-fit left-side (driver side) replacement. Built to OEM specifications, this rotor installs without modification for a straightforward upgrade over worn factory rotors.

Key Features:

• Cross-Drilled Design: Precision-drilled holes are chamfered and countersunk to reduce heat buildup and improve ventilation while preventing rotor cracking
• G3000 Grade Cast Iron: High-quality iron alloy provides excellent thermal stability, consistent braking performance, and long service life
• Zinc Protective Coating: Silver zinc plating guards against rust and corrosion on non-contact surfaces, maintaining appearance and extending rotor life
• OEM Direct Fit: Engineered to original equipment specifications — no cutting, drilling, or modifications required for installation
• Left Side Application: Sold individually as the driver-side rotor (left position)
• Vented Construction: Internal vane structure promotes airflow for improved heat dissipation during repeated braking

The RNC Series is ideally suited for daily street driving and light performance use, delivering reliable stopping power with a clean, drilled aesthetic. As with all R1 Concepts rotors, a proper bed-in procedure is recommended after installation to ensure optimal pad-to-rotor contact and braking performance.