R1 Concepts 623-21037R RNC Series Cross-Drilled Brake Rotor

The R1 Concepts 623-21037R is a precision-engineered RNC Series cross-drilled brake rotor designed to deliver consistent, reliable stopping power and improved thermal management over standard OE rotors. Engineered with performance-oriented drivers in mind, this rotor offers a direct-fit, no-modification replacement that upgrades both function and appearance.

Key Features:

• Cross-Drilled Design: Precision-drilled holes help dissipate heat rapidly, reduce brake fade under repeated or heavy braking, and expel gases and debris from the rotor surface for cleaner, more consistent pad contact
• Silver Zinc Plated Coating: Protects the non-braking surfaces (hat, hub, and vanes) from corrosion, extending rotor life and maintaining a clean, finished appearance behind the wheel
• High-Carbon Cast Iron Construction: Provides excellent durability, reduced vibration, and quieter operation compared to standard gray iron rotors
• Direct OE Replacement Fit: Engineered to match OEM mounting specifications for a straightforward, bolt-on installation with no modifications required
• Vented Design: Internal vane structure promotes continuous airflow through the rotor, helping to maintain optimal operating temperatures during demanding driving conditions
• Single Rotor (1PC): Sold individually — order the quantity needed for your application

R1 Concepts brake rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The 623-21037R is a solid upgrade for drivers seeking improved braking performance, reduced fade, and enhanced rotor longevity over stock components.