R1 Concepts 623-28001L RNC Series Drilled Brake Rotor - Left/Driver Side

The R1 Concepts 623-28001L RNC Series Drilled Brake Rotor is a precision-engineered direct OEM replacement rotor designed to deliver reliable, consistent stopping performance. Featuring a drilled disc design, this rotor promotes improved heat dissipation, reduced brake fade, and enhanced wet-weather braking by allowing gas, heat, and water to escape quickly from the rotor surface.

The RNC designation indicates R1 Concepts' Geomet® protective coating — a premium, water-based coating applied to the non-friction surfaces of the rotor to resist corrosion and rust, keeping the rotor looking cleaner longer without compromising braking performance. This left/driver-side rotor is manufactured from high-carbon grey iron for durability and optimized thermal capacity.

Key Features:

• Drilled Design: Cross-drilled holes reduce heat buildup, minimize brake fade, and channel away water and debris for consistent performance
• Geomet® Corrosion-Resistant Coating: Applied to hat and non-friction surfaces to prevent rust and extend rotor life
• OEM Replacement Fitment: Engineered to match original equipment specifications for straightforward installation
• High-Carbon Grey Iron Construction: Provides superior strength, vibration damping, and thermal stability
• Left/Driver Side: Designed specifically for the driver-side front or rear application (verify fitment)
• Balanced and Tested: Each rotor is precision balanced to minimize vibration, pulsation, and pedal feedback

The R1 Concepts RNC rotor is an excellent choice for drivers seeking a quality OEM-style replacement with added corrosion protection and the performance benefits of a drilled rotor surface. Compatible with standard OEM brake calipers and hardware.