R1 Concepts 613-45021L RNC Series Slotted Brake Rotor

The R1 Concepts 613-45021L RNC Series Slotted Brake Rotor is a high-performance replacement rotor engineered for drivers who demand consistent, reliable stopping power. Featuring precision-machined slots across the rotor face, this rotor continuously sweeps debris, gases, and heat away from the braking surface, maintaining optimal pad-to-rotor contact throughout every stop.

Key Features:

• Slotted Design: Strategically machined slots help evacuate heat, water, and brake dust for improved bite and fade resistance
• Precision Balanced: CNC-machined to strict tolerances to minimize vibration, pulsation, and pedal feedback
• Premium G3000 Metallurgy: Cast from high-grade gray iron for consistent performance and extended rotor life
• Corrosion-Resistant Coating: Non-braking surfaces feature a protective coating to resist rust and maintain appearance
• Direct OE Replacement: Engineered as a direct bolt-on replacement with no modifications required
• Left-Side Specific (L): Designed specifically for the driver-side (left) position for proper slot orientation and performance

R1 Concepts rotors are manufactured to meet or exceed OEM specifications, making the 613-45021L a straightforward, confidence-inspiring upgrade over worn or stock rotors. Ideal for daily driving and performance street use, this rotor pairs well with R1 Concepts brake pad sets for a complete, matched braking solution.