R1 Concepts 623-54142R RNC Series Drilled Brake Rotor

The R1 Concepts 623-54142R is a cross-drilled brake rotor from R1 Concepts' RNC Series, engineered to deliver improved braking performance and heat dissipation over a standard OEM replacement rotor. The precision-drilled holes reduce rotor weight while channeling heat, gas, and debris away from the braking surface for consistent, fade-resistant stopping power.

Key Features:

• Cross-Drilled Design – Strategically placed drill holes evacuate heat and gases from the pad-to-rotor contact area, reducing brake fade during demanding use
• Silver Zinc Plated Coating – Protects the rotor's non-braking surfaces (hub, vanes, and hat) from rust and corrosion, extending service life and maintaining a clean appearance
• Double Disc Ground Braking Surface – Precision-ground finish promotes faster, more even brake pad bed-in and delivers quieter, smoother braking performance
• OEM-Compatible Fitment – Engineered to direct-fit OEM mounting specs for straightforward installation with no modifications required
• High-Grade G3000 Metallurgy – Cast from G3000 gray iron for optimal thermal conductivity, durability, and long service life

The R1 Concepts RNC Series drilled rotor is a direct OEM replacement upgrade suitable for daily driving and light performance applications. The silver zinc plated coating covers the rotor upon delivery; the coating on the pad contact surface will naturally wear off during the break-in process, which is normal and expected.