R1 Concepts 623-31004R RNC Series Drilled Brake Rotor

The R1 Concepts 623-31004R RNC Series Drilled Brake Rotor is a precision-engineered replacement disc brake rotor designed to deliver consistent stopping power and improved thermal management over standard OEM rotors. R1 Concepts manufactures this rotor using high-grade G3000 metallurgy cast iron, providing the strength, durability, and heat dissipation characteristics demanded by daily drivers and performance enthusiasts alike.

The drilled hole pattern is strategically placed across the rotor face to evacuate heat, gas, and debris from the braking surface, helping to reduce brake fade during repeated or aggressive braking. This design also helps keep brake pads clean and free of glazing, maintaining consistent bite and pedal feel over the life of the rotor.

Key Features:

• Drilled rotor design for improved heat dissipation and reduced brake fade
• High-grade G3000 cast iron construction for strength and longevity
• Precision-machined braking surfaces for smooth, vibration-free performance
• Corrosion-resistant coating on non-braking surfaces to resist rust and improve appearance
• Direct OEM replacement — no modifications required for installation
• Manufactured to strict dimensional tolerances for proper fitment and runout specs

The R1 Concepts RNC rotor is a direct bolt-on replacement that installs using factory mounting hardware, making it a straightforward upgrade or service replacement. It is compatible with standard OEM-style brake pads, though pairing with a quality performance pad set is recommended to maximize the benefits of the drilled design.