R1 Concepts 623-72037R RNC Series Drilled Brake Rotor

The R1 Concepts 623-72037R RNC Series Drilled Brake Rotor is a high-performance replacement rotor engineered for improved stopping power and heat dissipation. Precision-drilled holes across the rotor face allow hot gases and brake dust to escape during heavy braking, reducing brake fade and keeping rotor temperatures in check under demanding driving conditions.

R1 Concepts manufactures this rotor using G3000 premium gray iron, which delivers consistent friction characteristics and long service life. Each rotor is computer-balanced to minimize vibration and is treated with a zinc dichromate coating on the non-friction surfaces to resist rust and corrosion during storage and daily use.

Key Features:

• Drilled rotor design for superior heat and gas evacuation
• G3000 premium gray cast iron construction for durability and consistent performance
• Zinc dichromate coating on hat and edges to prevent corrosion
• Computer-balanced for smooth, vibration-free braking
• Direct OE replacement — no modifications required for installation
• Precision machined to OE specifications for proper fitment and torque
• RNC (R1 Concepts) series designed for street and light performance use

Designed as a direct bolt-on replacement, the R1 Concepts 623-72037R installs with standard hand tools and requires no drilling, cutting, or modification. It is a reliable upgrade over worn OE rotors for drivers seeking improved braking performance and a cleaner, sportier rotor appearance.