R1 Concepts 623-21020L RNC Series Drilled Disc Brake Rotor - Left

The R1 Concepts 623-21020L RNC Series Drilled Brake Rotor is a direct-fit, performance-oriented disc brake rotor engineered to deliver reliable stopping power with improved heat management over a standard blank rotor. Precision-drilled holes across the rotor face allow heat, gas, and moisture to escape quickly from the braking surface, reducing brake fade and maintaining consistent pedal feel under repeated braking.

Key Features:

• Drilled Design: Precision-drilled holes enhance ventilation and heat dissipation, reducing brake fade during demanding driving conditions
• G3000 Grade Cast Iron Construction: Premium-grade cast iron provides durability, consistent braking performance, and extended rotor life
• Zinc Plated Coating: Protective zinc finish guards against rust and corrosion, improving appearance and longevity
• OEM-Spec Dimensions: Manufactured to original equipment specifications for a direct bolt-on installation with no modifications required
• Left / Driver-Side Fitment: This listing is for the left (driver) side rotor — part number suffix "L" designates side-specific fitment
• Vented Rotor Construction: Internal vane design promotes airflow through the rotor for additional thermal management

The R1 Concepts RNC Series is designed for drivers who want a step above standard OEM replacement without moving to a full performance slotted setup. The drilled pattern delivers improved wet-weather braking response while the corrosion-resistant coating keeps the rotor looking clean behind the wheel. Compatible with both OEM and aftermarket brake pads.