R1 Concepts 631-92028L RNC Series Drilled & Slotted Brake Rotor

The R1 Concepts 631-92028L RNC Series Drilled and Slotted Brake Rotor is a performance-grade replacement rotor engineered for drivers who demand improved stopping power and thermal management over a standard OEM rotor. Combining a cross-drilled and slotted surface pattern, this rotor delivers consistent, fade-resistant braking under both everyday street conditions and spirited driving.

Key Features:

• Drilled & Slotted Design: Cross-drilled holes reduce rotor weight and allow heat, gas, and brake dust to escape, while the slots continuously clean and refresh the brake pad surface for optimal bite
• High-Carbon G3000 Metallurgy: Cast from G3000 spec iron alloy for excellent thermal conductivity, reduced vibration, and extended rotor life
• Zinc Dichromate Coating: Non-friction surfaces are coated to resist corrosion and maintain a clean appearance throughout the rotor's service life
• Precision Machined: Computer-balanced and machined to strict dimensional tolerances to minimize runout and prevent brake pedal pulsation
• Direct OEM Replacement: Engineered as a direct bolt-on replacement — no modifications or special hardware required
• Improved Heat Dissipation: Vented rotor construction promotes airflow through the rotor for rapid heat evacuation during repeated stops

R1 Concepts rotors are manufactured to meet or exceed OEM specifications and are ready to install straight out of the box. The 631-92028L is the left (driver) side application. Pair with R1 Concepts brake pads for a complete, matched brake system upgrade.