R1 Concepts 631-92041L RNC Series Drilled & Slotted Brake Rotor

The R1 Concepts 631-92041L RNC Series Drilled and Slotted Brake Rotor is a high-performance replacement rotor engineered for drivers who demand improved stopping power and consistent brake feel. The combination of cross-drilled holes and precision-cut slots work together to evacuate heat, gas, and debris from the rotor surface, helping maintain optimal pad-to-rotor contact under both daily driving and spirited conditions.

Key Features:

• Drilled & Slotted Design: Cross-drilled holes dissipate heat and reduce brake fade, while slots continuously sweep the pad surface clean for consistent bite
• OE-Style Replacement: Engineered as a direct-fit replacement for a straightforward installation with no modifications required
• High-Carbon Iron Construction: Premium gray iron casting provides superior thermal capacity and reduced noise compared to standard rotors
• Corrosion-Resistant Coating: Zinc dichromate finish on non-friction surfaces protects against rust and improves appearance
• Precision Balanced: Computer-balanced to minimize vibration and runout for smooth, pulsation-free braking
• Left Side (Driver Side) Fitment: This listing is for the left/driver-side front or rear rotor as designated by the L suffix in the part number

The R1 Concepts RNC series delivers a noticeable upgrade over standard OEM rotors, making it an ideal choice for performance-minded drivers seeking improved braking response and heat management without the need for a full big brake kit.