R1 Concepts 623-31000R RNC Series Cross-Drilled Disc Brake Rotor

The R1 Concepts 623-31000R RNC Series Drilled Brake Rotor is a precision-engineered disc brake rotor designed to deliver improved stopping performance over a standard OEM replacement rotor. Built to OEM specifications for a direct-fit, no-modification installation, this rotor is an ideal upgrade for drivers seeking enhanced braking capability and a more aggressive appearance behind the wheel.

Constructed from G3000 grade cast iron, the 623-31000R provides the strength, stability, and heat tolerance demanded by daily drivers and performance-oriented applications alike. The cross-drilled hole pattern is countersunk and chamfered to maximize heat dissipation, reduce the risk of stress cracking, and promote a smoother bed-in process. The drilled pattern also helps expel heat, gas, and debris from the rotor surface, maintaining consistent brake pad contact and reducing brake fade.

Key Features:

• Cross-Drilled Design: Precision-drilled holes are countersunk and chamfered to reduce heat buildup and prevent cracking
• G3000 Grade Cast Iron Construction: High-quality base material engineered for strength, durability, and consistent performance
• Zinc Plating Finish: Corrosion-resistant coating protects non-contact surfaces from rust and extends rotor service life
• Direct-Fit OEM Specifications: Engineered to match factory dimensions for straightforward, bolt-on installation with no modifications required
• Improved Heat Dissipation: Drilled pattern promotes airflow and venting to manage rotor temperatures during demanding braking events
• Reduced Brake Fade: Enhanced thermal management keeps braking performance consistent under repeated or heavy use

The R1 Concepts 623-31000R is sold as a single rotor. R1 Concepts recommends replacing brake pads any time new rotors are installed and performing a proper bed-in procedure after installation to ensure optimal long-term braking performance.