R1 Concepts 623-23003L RNC Series Drilled Brake Rotor - Left/Driver Side

The R1 Concepts 623-23003L RNC Series Drilled Brake Rotor is a high-performance replacement rotor designed for drivers seeking improved braking performance and a clean, aggressive appearance. This left/driver-side rotor features a cross-drilled pattern that promotes heat dissipation and helps evacuate gas buildup between the pad and rotor surface, maintaining consistent stopping power during spirited driving.

Key Features:

• Cross-Drilled Design: Strategically placed drill holes reduce rotor temperature and improve braking performance under demanding conditions
• Premium G3000 Grade Cast Iron: Manufactured from high-grade G3000 cast iron for durability, long service life, and OEM-level compatibility
• Electrophoretic Coating (E-Coat): Corrosion-resistant coating applied to non-friction surfaces helps prevent rust and extend rotor lifespan
• Direct OEM Replacement: Engineered to match original equipment specifications for a straightforward, no-modification installation
• Left/Driver Side Fitment: This is the driver-side (left) rotor; sold individually
• Balanced and Tested: Each rotor is precision machined and balanced to minimize vibration and pedal pulsation

The R1 Concepts RNC series offers an excellent upgrade path for drivers who want a performance-oriented brake rotor without sacrificing daily drivability or OEM fitment quality. Sold as a single rotor — confirm your vehicle application before ordering.