R1 Concepts 633-92090L RNC Series Drilled & Slotted Brake Rotor - Left

The R1 Concepts 633-92090L RNC Series Drilled and Slotted Brake Rotor is a high-performance replacement rotor engineered to deliver superior stopping power and improved heat dissipation over standard OEM rotors. Designed as a direct-fit left-side rotor, it installs without modification for a straightforward upgrade from factory braking components.

R1 Concepts' RNC Series rotors feature a combination of drilled holes and milled slots across the rotor face. The drilled holes reduce overall rotor weight and allow gases, heat, and brake dust to escape from the rotor-pad interface, while the slots continuously clean and refresh the brake pad surface for consistent, fade-resistant braking performance. The result is improved bite, shorter stopping distances, and enhanced performance under repeated heavy braking.

Key Features:

• Drilled & Slotted Design: Combines cross-drilling and surface slots for maximum heat venting and pad deglazing
• Direct-Fit Replacement: Engineered to OEM specifications for bolt-on installation with no modifications required
• Left-Side Application: Specifically designed and balanced for the driver-side (left) rotor position
• Premium G3000 Metallurgy: Cast from high-quality G3000 grade iron for durability and long service life
• Zinc Dichromate Finish: Protective coating on non-swept surfaces helps resist rust and corrosion during storage and service
• OEM-Style Hat Design: Maintains proper rotor-to-hub fitment and brake caliper alignment

The R1 Concepts RNC Series is an ideal choice for drivers seeking a noticeable performance improvement over stock rotors while retaining everyday drivability. This rotor is sold individually and is intended for the left/driver-side position.