R1 Concepts 623-48012L RNC Series Drilled Brake Rotor

The R1 Concepts 623-48012L RNC Series Drilled Brake Rotor is a performance-grade disc brake rotor engineered to deliver improved stopping power and thermal management over a standard OEM replacement rotor. Featuring a precision cross-drilled pattern, this rotor dissipates heat, gases, and moisture from the braking surface to help reduce brake fade during repeated or aggressive stops.

Key Features:

• Cross-Drilled Design: Strategically placed drill holes improve heat dissipation and help evacuate water and debris from the rotor face for consistent pad-to-rotor contact
• Corrosion-Resistant Coating: Silver zinc plating protects the non-braking surfaces, hub, and vane structure from rust and corrosion, extending rotor life and maintaining appearance
• Direct-Fit Replacement: Engineered as a bolt-on replacement rotor — no modifications required for compatible applications
• High-Quality Metallurgy: Cast from premium gray iron for consistent thermal performance and long service life
• Left/Driver-Side Fitment: This part number (623-48012L) designates the left-side (driver-side) rotor position
• R1 Concepts RNC Series: Part of R1 Concepts' performance rotor lineup offering an upgrade from standard solid or plain-faced OEM rotors

R1 Concepts rotors are manufactured to meet or exceed OEM dimensional specifications, making installation straightforward for professional technicians and experienced DIY mechanics alike. As with all new drilled rotors, a proper bed-in procedure is recommended after installation to fully seat the brake pads and achieve optimal braking performance.