R1 Concepts 623-56009L RNC Series Drilled Disc Brake Rotor

The R1 Concepts 623-56009L is a RNC Series drilled disc brake rotor engineered to deliver reliable stopping power with enhanced thermal management. Designed as a direct-fit replacement, this rotor installs without modification and is built to OEM dimensional specifications for a hassle-free upgrade.

Key Features:

• Precision cross-drilled holes — countersunk to reduce heat stress and prevent cracking, allowing heat to escape efficiently and lower rotor operating temperature
• G3000 grade cast iron construction — provides the strength and durability needed for consistent, long-term braking performance
• Zinc plating finish — corrosion-resistant coating protects the rotor hub and vane structure from rust, extending service life and maintaining appearance
• Direct-fit design — built to OEM specifications, no cutting, drilling, or modification required for installation
• Left-side fitment (L) — this rotor is designated for the driver-side (left) wheel position

R1 Concepts RNC drilled rotors are well-suited for daily driving, light performance use, and vehicles where improved heat dissipation over a standard smooth rotor is desired. For best results, always replace brake pads when installing new rotors and follow a proper bed-in procedure after installation.