R1 Concepts 623-47004L RNC Series Drilled Brake Rotor - Left

The R1 Concepts 623-47004L RNC Series Drilled Brake Rotor is a precision-engineered replacement disc brake rotor designed to deliver consistent, reliable stopping performance. This is the left-side (driver side) rotor, identified by the "L" suffix in the part number.

Manufactured from G3000 grade cast iron, this rotor offers excellent thermal stability and durability under repeated braking cycles. The drilled hole pattern improves heat dissipation, helps channel away water and debris, and reduces rotor weight — all contributing to more confident braking performance.

Key Features:

• Precision-drilled holes for improved heat ventilation and wet-weather braking
• G3000 grade cast iron construction for durability and consistent performance
• Zinc-plated finish helps resist corrosion and rust during storage and early use
• Manufactured to OEM dimensional specifications — no modifications required for installation
• Left-side (driver side) fitment — sold individually
• Compatible with standard brake pad and caliper hardware

The R1 Concepts RNC series is designed for drivers seeking a performance-oriented upgrade over standard OEM rotors while maintaining everyday drivability and quiet operation. Pair with R1 Concepts brake pads for a complete, matched braking system.