R1 Concepts 613-40072L RNC Slotted Disc Brake Rotor - Left/Driver Side

The R1 Concepts 613-40072L RNC Slotted Brake Rotor is a direct-fit, performance-grade disc brake rotor engineered to deliver consistent, reliable stopping power. Featuring R1 Concepts' signature slotted surface design, this rotor improves braking bite, dissipates heat efficiently, and helps clear debris and gases from the pad contact area for fade-resistant performance.

Key Features:

• Slotted Rotor Design: Precision-machined slots increase brake pad bite and channel heat, dust, and debris away from the braking surface, reducing brake fade and extending pad life
• Built-in Wear Indicator: Slots serve as a visual wear indicator — when slots are no longer visible, the rotor has reached minimum thickness and replacement is needed
• Zinc Plating: Corrosion-resistant zinc coating applied to the hub and vane structure protects against rust and extends rotor service life
• G3000 Gray Iron Construction: Cast from high-grade G3000 iron for superior strength, thermal stability, and durability under repeated braking cycles
• Double Disc Ground: Precision double disc grinding ensures a flat, true braking surface for faster, more even pad bed-in and quieter operation
• Direct OE Replacement: Manufactured to original equipment specifications for a no-modification, bolt-on installation
• Left/Driver Side: This is the left (driver) side rotor — part number suffix "L" designates fitment position

A proper break-in procedure is recommended after installation. During initial use, the zinc coating on the braking surface will wear away naturally as pads bed in, leaving the hub and internal vane structure protected. This rotor is sold individually.