R1 Concepts 623-74006R RNC Series Cross-Drilled Brake Rotor

The R1 Concepts 623-74006R RNC Series Drilled Brake Rotor is a precision-engineered replacement disc brake rotor designed to deliver reliable, consistent stopping power. Manufactured to OEM specifications, this rotor installs without modification and restores proper braking performance to your vehicle.

R1 Concepts RNC Series rotors are constructed from G3000 grade cast iron for superior strength, heat dissipation, and long service life. The cross-drilled hole pattern improves ventilation across the rotor face, helping to reduce brake fade during demanding driving conditions while also keeping brake dust and debris from building up between the pad and rotor surface.

Key Features:

• G3000 grade cast iron construction for durability and consistent performance
• Cross-drilled design for improved heat ventilation and reduced brake fade
• Precision-balanced for smooth, vibration-free braking
• Silver zinc-plated coating protects non-braking surfaces from corrosion and rust
• Direct OEM replacement — no drilling, cutting, or modification required
• Manufactured to strict dimensional tolerances for proper fitment and pad contact

The protective zinc coating covers the hat, vanes, and non-contact surfaces to guard against rust and corrosion, extending the cosmetic and structural life of the rotor. During initial break-in, the coating on the braking surface will wear away naturally, leaving the hub and inner vane structure protected.