R1 Concepts 623-54142L RNC Series Drilled Brake Rotor - Left

The R1 Concepts 623-54142L is a RNC Series drilled brake rotor designed as a direct OE replacement with enhanced performance characteristics. R1 Concepts manufactures this rotor to meet or exceed original equipment specifications, delivering confident stopping power for everyday driving and spirited use alike.

Key Features:

• Drilled design promotes heat dissipation and helps expel gas, water, and debris from the rotor surface for consistent braking performance
• Left-side (driver-side) fitment — sold individually
• Precision-machined from high-carbon gray iron for durability and reduced brake noise
• OE-matching hub geometry ensures straightforward, no-modification installation
• Treated with a corrosion-resistant coating to protect non-swept surfaces during storage and service life
• Computer-balanced to minimize vibration and pedal pulsation
• Meets or exceeds FMSI and SAE standards

R1 Concepts rotors are engineered for a precise fit and are compatible with the vehicle's original caliper and brake pad hardware. The 623-54142L is ideal for drivers seeking a reliable, performance-oriented replacement rotor that installs like stock but performs above expectations.