R1 Concepts 623-28004L RNC Series Drilled Brake Rotor

The R1 Concepts 623-28004L is a premium RNC Series drilled brake rotor engineered for improved stopping performance and heat dissipation. Manufactured from high-carbon grey iron, this rotor delivers consistent pedal feel and fade resistance under demanding driving conditions.

Key Features:

• Drilled design promotes rapid heat evacuation, reducing brake fade during spirited or repeated braking
• High-carbon grey iron construction for enhanced durability, reduced vibration, and quieter operation compared to standard cast iron
• Precision-machined mounting surface ensures proper fitment and eliminates runout for smooth, even pad contact
• Corrosion-resistant coating on non-swept surfaces protects against rust and improves appearance
• OE-style vane configuration maintains proper airflow for consistent thermal management
• Direct bolt-on replacement — no modifications required

R1 Concepts rotors are manufactured to strict dimensional tolerances and are designed as a direct OEM replacement or performance upgrade. The RNC Series is ideal for drivers seeking improved braking response and rotor longevity over standard replacement parts.