R1 Concepts 623-58016L RNC Series Drilled Disc Brake Rotor

The R1 Concepts 623-58016L is a drilled disc brake rotor from R1 Concepts' RNC Series, engineered as a direct-fit replacement and performance upgrade over stock rotors. Precision cross-drilled holes improve heat dissipation, reduce brake fade during repeated or heavy stops, and help clear gas and debris from the pad-to-rotor contact surface for consistent, confident braking.

Key Features:

• Cross-Drilled Holes: Countersunk drilled holes channel heat away from the rotor surface, lowering operating temperatures and reducing the risk of thermal cracking
• Direct-Fit Design: Engineered to match OEM mounting specifications for a bolt-on installation with no modifications required
• Silver Zinc Plated Finish: Corrosion-resistant coating protects the hub, hat, and vane areas for improved appearance and longevity
• High-Carbon Steel Construction: Provides superior strength and vibration dampening compared to standard cast iron rotors
• Single Rotor (Left/Driver Side): Sold individually; MPN suffix "L" denotes the left-side application

R1 Concepts recommends replacing brake pads simultaneously with new rotors and performing a proper bed-in procedure after installation to achieve optimal pad transfer and braking performance. This rotor is compatible with both OEM-style and performance aftermarket brake pads.