R1 Concepts 623-54162L RNC Series Drilled Brake Rotor

The R1 Concepts 623-54162L RNC Series Drilled Brake Rotor is a precision-engineered replacement rotor designed to deliver consistent, reliable stopping power. Manufactured from high-carbon grey iron, this rotor provides superior heat dissipation and fade resistance compared to standard OEM rotors, making it well-suited for daily driving and performance applications alike.

The drilled hole pattern reduces rotor weight and helps evacuate heat, gases, and debris from the rotor surface, keeping the brake pad contact area clean for more responsive braking performance. Each rotor is computer-balanced to minimize vibration and is finished with a corrosion-resistant coating on non-contact surfaces to extend service life and maintain a clean appearance.

Key Features:

• Drilled hole pattern for improved heat dissipation and reduced brake fade
• High-carbon grey iron construction for strength and thermal stability
• Computer-balanced for smooth, vibration-free braking
• Corrosion-resistant coating on non-friction surfaces
• Direct OEM replacement — no modifications required for installation
• Manufactured to strict dimensional tolerances for precise fitment

R1 Concepts rotors are engineered as a direct bolt-on replacement, allowing for straightforward installation without special tools or modifications. The 623-54162L is the left-side (driver's side) rotor and should be replaced in pairs with the matching right-side rotor for even braking performance.