R1 Concepts 623-13039R RNC Series Cross-Drilled Brake Rotor

The R1 Concepts 623-13039R RNC Series Drilled Brake Rotor delivers reliable, performance-grade stopping power in a direct-fit, OE-specification design. Engineered to replace your factory rotor with no modifications required, this rotor is built for drivers who want a meaningful upgrade over standard blank rotors without sacrificing everyday drivability.

Key Features:

• Cross-Drilled Design: Precision-drilled holes are countersunk and chamfered to reduce heat buildup by up to 105°F, improve ventilation, and minimize the risk of cracking during normal use
• G3000 Grade Cast Iron Construction: Manufactured from G3000 iron for superior strength, thermal stability, and long-lasting braking performance
• Zinc Plated Corrosion Protection: Zinc plating covers the hub, hat, and inner vane structure to resist rust and extend rotor lifespan — coating on the braking surface wears away naturally during break-in
• Double Disc Ground Surface: Promotes faster, more even brake pad bed-in for quieter, smoother stops right from installation
• OE Direct Fit: Manufactured to original equipment specifications — no drilling, cutting, or modification needed for installation
• Single Rotor (1PC): Sold individually; order two for a complete axle replacement

The RNC Series rotor is an ideal upgrade for daily drivers, light street performance, and towing or hauling applications. Always replace brake pads when installing new rotors and follow the recommended break-in procedure for optimal performance and longevity.