R1 Concepts 613-40059L RNC Series Slotted Brake Rotor

The R1 Concepts 613-40059L is a RNC Series slotted brake rotor engineered for drivers who demand consistent stopping performance and improved thermal management. R1 Concepts manufactures this rotor using high-carbon grey iron, which provides excellent heat dissipation and reduces the risk of brake fade during repeated or heavy braking events.

Key Features:

• Slotted Design: Precision-machined slots channel away heat, gas, and debris from the rotor face, maintaining consistent pad-to-rotor contact for reliable stopping power
• High-Carbon Grey Iron Construction: Delivers superior strength, reduced vibration, and longer rotor service life compared to standard cast iron
• Geomet® or Zinc Dichromate Coating: Corrosion-resistant finish protects non-swept surfaces from rust and extends cosmetic longevity
• Computer Balanced: Each rotor is precision balanced to minimize vibration and pedal pulsation during braking
• Direct OE Replacement: Bolt-on fitment designed to match original equipment specifications with no modifications required
• Left Side (Driver Side): Designated by the "L" suffix in the part number, this rotor is designed for the left/driver-side wheel position

The R1 Concepts RNC Series is an ideal upgrade or OE-quality replacement for daily drivers and performance-oriented vehicles alike. Paired with compatible brake pads, this rotor delivers confident, fade-resistant braking performance mile after mile.