R1 Concepts 623-01004R RNC Series Drilled Disc Brake Rotor

The R1 Concepts 623-01004R RNC Series Drilled Brake Rotor delivers reliable, consistent stopping power for daily drivers and street performance enthusiasts. Engineered to OEM specifications, this precision-drilled rotor is a direct-fit replacement that requires no modifications for installation.

R1 Concepts manufactures this rotor from G3000 grade cast iron, the same high-quality material standard used in original equipment rotors. The precision-drilled holes promote airflow across the rotor face, helping to dissipate heat more efficiently during repeated braking and reducing the risk of brake fade under demanding conditions. The drilled hole pattern also helps expel water, gases, and debris from the rotor surface for more consistent pad contact.

Key Features:

• G3000 grade cast iron construction for strength and durability
• Precision-drilled holes for improved heat dissipation and ventilation
• Countersunk drill hole design helps prevent cracking
• Direct OEM replacement — no modifications required
• Zinc-washed finish provides corrosion resistance during shipping and storage
• Balanced and precision-machined for smooth, quiet operation
• Manufactured to strict dimensional tolerances for proper fit and rotor runout

The R1 Concepts RNC Series is an excellent upgrade from a worn OEM rotor, providing improved thermal management and a performance-oriented drilled appearance. Compatible with a wide range of OEM-style brake pads and ideal for everyday street driving, light towing, and spirited driving applications.