R1 Concepts 631-92027L RNC Drilled & Slotted Brake Rotor

The R1 Concepts 631-92027L RNC Series Drilled and Slotted Brake Rotor is a performance-engineered replacement rotor designed to deliver improved stopping power, reduced brake fade, and extended rotor life over standard OEM rotors. Built for drivers who demand more from their braking system, this rotor combines aggressive aesthetics with real functional benefits.

Key Features:

• Drilled & Slotted Design: Cross-drilled holes allow heat, gases, and water to dissipate quickly, while the slots continuously clean and deglaze brake pad surfaces for consistent bite
• Reduced Brake Fade: Enhanced ventilation minimizes heat buildup during repeated hard stops, maintaining braking performance under demanding conditions
• Direct OEM Replacement: Engineered to match original mounting specifications for a straightforward, bolt-on installation with no modifications required
• Premium Metallurgy: Cast from high-carbon G3000 iron for superior thermal resistance, durability, and consistent performance across a wide temperature range
• Corrosion-Resistant Finish: Zinc-plated hat and non-braking surfaces help prevent rust and extend the cosmetic life of the rotor
• Balanced & Tested: Each rotor is precision-machined and tested to ensure minimal runout and smooth, vibration-free braking

The R1 Concepts RNC Series is an ideal upgrade for daily drivers and enthusiasts seeking improved performance without the cost of a full big brake kit. Part number 631-92027L is the left-side (driver's side) rotor. Always replace rotors in axle pairs for balanced braking performance.