R1 Concepts 623-48004R RNC Series Cross-Drilled Brake Rotor

The R1 Concepts 623-48004R RNC Series Drilled Brake Rotor is a precision-engineered replacement disc brake rotor designed to deliver reliable stopping power and improved thermal performance over a standard OEM rotor. Built to direct-fit OEM specifications, this rotor installs without modification and restores full braking function with an upgrade in performance.

The cross-drilled hole pattern is chamfered to reduce stress concentrations, helping prevent cracking while simultaneously allowing heat, gas, and moisture to escape from the braking surface. The result is a cooler-running rotor with more consistent pad bite and reduced brake fade under repeated stops.

Key Features:

• Cross-Drilled Design: Precision-drilled holes ventilate the rotor surface, dissipating heat and reducing brake fade during heavy use
• Chamfered Drill Holes: Countersunk edges minimize the risk of cracking and extend rotor service life
• G3000 Grade Cast Iron Construction: High-quality iron alloy meets or exceeds OEM material standards for strength and durability
• Silver Zinc Plating: Corrosion-resistant coating protects the hub, hat, and vane structure from rust, extending appearance and longevity
• Direct OEM Replacement: Engineered to OEM dimensions for a straightforward, no-modification installation
• Improved Braking Consistency: Optimized surface contact promotes smooth, quiet, and fade-resistant braking performance

The R1 Concepts RNC Series rotor is an ideal upgrade for drivers seeking improved heat management and a cleaner look behind the wheel, without departing from a streetable, daily-driver-friendly setup. This rotor is sold as a single unit — confirm your vehicle's required quantity before ordering.