R1 Concepts 623-03052R RNC Series Drilled Brake Rotor

The R1 Concepts 623-03052R RNC Series Drilled Brake Rotor is a precision-engineered replacement rotor designed to deliver consistent stopping power and improved thermal management over stock rotors. R1 Concepts manufactures this rotor from high-carbon gray iron, providing excellent heat dissipation and long-lasting durability under daily driving and spirited use.

The drilled pattern reduces rotor surface temperature by allowing heat and gas buildup to escape, while also helping to clear water and debris from the rotor face for more reliable braking in varied conditions. Each rotor undergoes a zinc dichromate coating on non-friction surfaces to resist corrosion and maintain a clean appearance.

Key Features:

• Drilled hole pattern for improved cooling and gas venting
• High-carbon gray iron construction for strength and heat resistance
• Zinc dichromate coating on non-braking surfaces for corrosion protection
• Precision-balanced to minimize vibration and brake pedal pulsation
• Direct bolt-on OE replacement — no modifications required
• Meets or exceeds OEM specifications for fit, form, and function

The R1 Concepts RNC Drilled Brake Rotor is a straightforward, cost-effective upgrade for drivers looking to replace worn rotors with a performance-oriented option that installs like a stock part.