R1 Concepts 623-54238L RNC Series Drilled Brake Rotor

The R1 Concepts 623-54238L RNC Series Drilled Brake Rotor is a precision-engineered replacement rotor designed to deliver consistent stopping power and improved thermal performance. R1 Concepts manufactures this rotor to meet or exceed OEM specifications, making it a reliable direct-fit upgrade for daily drivers and performance-oriented vehicles alike.

The drilled hole pattern promotes rapid heat dissipation, helps expel gases and debris from the rotor face, and reduces overall rotor weight — all of which contribute to a more responsive and fade-resistant braking experience. The rotor is computer balanced to minimize vibration and brake pedal pulsation during operation.

Key Features:

• Drilled rotor design for enhanced cooling and gas evacuation
• Manufactured to OEM dimensional specifications for a direct-fit replacement
• Computer-balanced construction to reduce vibration and pedal pulsation
• Corrosion-resistant coating on non-contact surfaces to prevent premature rust
• High-carbon iron alloy construction for durability and consistent braking performance
• Left (driver) side application — single rotor included

The R1 Concepts RNC Series offers an accessible entry into performance braking without sacrificing daily-driver reliability. This rotor is sold individually (left side) and is designed for straightforward installation using standard hand tools.