R1 Concepts 623-21044R RNC Series Drilled Disc Brake Rotor

The R1 Concepts 623-21044R RNC Series Drilled Brake Rotor delivers reliable, consistent stopping power with a precision-engineered cross-drilled design. Built to meet or exceed OEM specifications, this direct-fit replacement rotor is manufactured from high-carbon gray iron for superior strength, heat absorption, and fade resistance.

The RNC Series features a premium Geomet protective coating applied to all non-braking surfaces, providing exceptional corrosion resistance and a clean, finished appearance that lasts the life of the rotor. The precision-drilled holes promote efficient heat dissipation, helping to reduce brake fade during repeated or heavy stops.

Key Features:

• Cross-drilled hole pattern for improved heat dissipation and reduced brake fade
• Premium Geomet coating on hat and non-braking surfaces for long-term corrosion resistance
• High-carbon gray iron construction for enhanced stopping power and durability
• Direct OEM replacement — no modifications required for installation
• Precision-balanced and computer-tested to minimize vibration and noise
• G3000 or equivalent grade cast iron meets or exceeds OEM standards

The R1 Concepts 623-21044R is a right-side (passenger side) rotor, as indicated by the "R" suffix in the part number. It is designed for straightforward bolt-on installation and is compatible with standard brake pad formulations. Always replace brake pads when installing new rotors and follow a proper bed-in procedure for optimal performance and longevity.