R1 Concepts 633-32019L RNC Drilled & Slotted Brake Rotor

The R1 Concepts 633-32019L RNC Drilled and Slotted Brake Rotor is a direct-fit performance replacement rotor engineered to deliver improved stopping power and long-lasting durability. Designed as a direct OEM-style replacement, this rotor features a combination of cross-drilled holes and precision-cut slots that work together to evacuate heat, gas, and debris from the braking surface for consistent, fade-resistant performance.

The RNC (Replacement No-Coat) series features a zinc dichromate coating applied to the non-friction surfaces to resist rust and corrosion right out of the box — eliminating the surface rust that commonly appears on uncoated rotors during shipping and storage. The friction surface is precision-machined to tight tolerances for smooth, even pad contact and quiet operation.

Key Features:

• Drilled and slotted design improves heat dissipation and reduces brake fade
• Zinc dichromate coating on non-friction surfaces resists corrosion
• Precision-machined friction surface for even pad contact and reduced noise
• Left-side (driver side) fitment — sold individually
• Meets or exceeds OEM specifications for a direct bolt-on installation
• Compatible with OEM and aftermarket performance brake pads
• Manufactured from high-carbon G3000 or equivalent grade iron for durability and thermal stability

The R1 Concepts 633-32019L is ideal for drivers seeking a performance upgrade over standard smooth rotors without sacrificing daily-drive reliability. For best results, pair with R1 Concepts brake pads and perform a proper bed-in procedure after installation.