R1 Concepts 623-27020L RNC Drilled Brake Rotor - Left Front/Rear

The R1 Concepts 623-27020L RNC Drilled Brake Rotor is a direct OEM-replacement rotor engineered for drivers who want improved braking performance without sacrificing street reliability. Designed as a left-side replacement, this rotor slots seamlessly into your factory brake setup for a straightforward, no-modification installation.

R1 Concepts' RNC (Replacements N Concepts) series rotors are precision-machined from high-grade G3000 cast iron, delivering consistent thermal stability and fade resistance under a wide range of driving conditions. The drilled hole pattern promotes rapid heat dissipation and helps expel gas and debris from the rotor surface, maintaining maximum pad-to-rotor contact and consistent stopping power.

Key Features:

• Direct OEM replacement fitment — no modifications required
• Drilled hole pattern for enhanced heat dissipation and reduced brake fade
• Manufactured from high-grade G3000 cast iron for durability and consistent performance
• Precision-balanced for smooth, vibration-free braking
• Left-side (driver side) rotor — sold individually
• Corrosion-resistant zinc dichromate coating on non-swept surfaces for long-lasting appearance
• Meets or exceeds OEM specifications

The R1 Concepts RNC Drilled Rotor is an excellent upgrade for daily drivers and enthusiasts seeking improved thermal performance over standard OEM rotors, while maintaining full compatibility with OEM and aftermarket brake pads.