R1 Concepts 633-76071L RNC Drilled & Slotted Brake Rotor - Left

The R1 Concepts 633-76071L is a single drilled and slotted disc brake rotor from R1 Concepts' RNC series, designed for the left (driver) side. This performance rotor combines cross-drilled holes and precision-cut slots to deliver superior stopping power, improved thermal management, and extended rotor life compared to standard blank rotors.

Key Features:

• Cross-Drilled Holes: Promote heat dissipation and help evacuate gas, dust, and debris from the braking surface for consistent, fade-resistant performance
• Directional Slots: Channel away heat, water, and brake dust to maintain a clean contact patch and improve bite throughout the pad's life
• Corrosion-Resistant Zinc Coating: Applied to non-braking surfaces (hat, vanes, and outer edges) to protect against rust and extend rotor life
• Multi-Alloy Construction: Manufactured with premium alloys for improved heat dissipation and long-lasting durability
• Mill-Balanced Design: Precision mill-balanced to minimize vibration and ensure smooth, quiet braking performance
• Direct OEM Replacement: Engineered to fit and function as a direct replacement for the original equipment rotor with no modifications required

R1 Concepts is a Los Angeles-based manufacturer with over 20 years of brake engineering expertise, offering one of the most comprehensive brake catalogs in the industry. The 633-76071L is sold as a single left-side rotor; a matching right-side rotor should be purchased separately for a complete axle replacement.