R1 Concepts 631-92065L RNC Drilled & Slotted Brake Rotor

The R1 Concepts 631-92065L RNC Series Drilled and Slotted Brake Rotor is a performance-grade replacement rotor engineered for drivers who demand more from their braking system. Combining precision cross-drilling and surface slotting, this rotor delivers improved stopping power, reduced brake fade, and enhanced heat dissipation compared to standard OEM rotors.

Key Features:

• Drilled & Slotted Design: Cross-drilled holes and machined slots work together to vent heat, channel away gases and debris, and maintain consistent pad contact for reliable stopping performance
• Premium Metallurgy: Manufactured from high-carbon grey iron for superior strength, durability, and resistance to cracking under repeated thermal stress
• Precision Machined: Computer-balanced and precision machined to tight tolerances, minimizing vibration and pedal pulsation for a smooth braking feel
• Zinc Dichromate Coating: Protective coating applied to non-friction surfaces helps resist rust and corrosion, extending rotor service life and maintaining appearance
• Direct OEM Replacement: Engineered as a direct bolt-on replacement — no modifications required for a straightforward installation
• Left-Side Application: This is the left (driver-side) front or rear rotor; verify fitment with your vehicle's year, make, and model before installation

R1 Concepts is a performance brake specialist known for producing rotors and brake kits that meet or exceed OEM specifications. The RNC Series is an ideal upgrade for daily drivers and enthusiasts looking for improved braking response without the cost of a full big-brake kit.