R1 Concepts 623-31063L RNC Drilled Brake Rotor - Left

The R1 Concepts 623-31063L RNC Drilled Brake Rotor is a precision-engineered left-side replacement rotor designed for superior stopping performance and long-lasting durability. Part of R1 Concepts' Rust and Noise Control (RNC) series, this rotor features a drilled pattern that improves heat dissipation, reduces brake fade under demanding conditions, and helps evacuate gas and debris from the rotor surface for consistent, confident braking.

Key Features:

• Drilled Pattern: Cross-drilled holes promote cooling and reduce rotor temperatures during repeated or heavy braking
• RNC (Rust and Noise Control) Coating: Protective coating applied to the hat and non-swept areas to resist corrosion and minimize brake noise
• OEM-Grade Metallurgy: Manufactured from high-carbon grey iron for improved heat absorption and thermal stability
• Direct-Fit Replacement: Engineered to OEM specifications for straightforward bolt-on installation with no modifications required
• Left-Side Fitment: Designed specifically for the driver-side (left) wheel position
• Balanced Design: Precision machined and balanced to eliminate vibration and pedal pulsation

The R1 Concepts RNC series is an excellent upgrade or replacement option for drivers seeking improved brake performance and corrosion resistance over standard OEM rotors. This rotor is ready for use with a wide range of brake pad compounds and is suitable for daily driving as well as spirited use.