R1 Concepts 623-40045L RNC Series Cross-Drilled Brake Rotor - Left

The R1 Concepts 623-40045L RNC Series Cross-Drilled Brake Rotor is a direct-fit, performance-grade disc brake rotor engineered to deliver confident stopping power and long-term durability. The "L" designation indicates this is the left (driver) side rotor, sold individually.

R1 Concepts' RNC Series features precision cross-drilled holes that help evacuate heat, gas, and brake dust from the rotor surface, maintaining consistent pad-to-rotor contact and reducing brake fade under repeated or hard braking conditions.

Key Features:

• Cross-Drilled Design: Strategically placed drill holes improve heat dissipation and reduce brake fade
• Silver Zinc Plating: Corrosion-resistant coating protects the hat, hub, and vane surfaces from rust and oxidation for extended service life
• Direct OE Replacement: Manufactured to OEM specifications for a precise, no-modification fit
• Vented Construction: Internal vane structure promotes airflow between rotor faces to further manage heat buildup
• Left Side (Driver Side): Part number suffix "L" confirms fitment on the left/driver-side position
• ISO/TS Certified Manufacturing: Produced in ISO/TS 16949-certified facilities for consistent quality and dimensional accuracy

The RNC Series rotor is a reliable upgrade or replacement option for drivers seeking improved braking performance over a standard OEM rotor. The silver zinc plating ensures the rotor arrives ready to install with a clean, attractive finish behind your wheels.