R1 Concepts 613-47042L RNC Slotted Brake Rotor - Left/Driver Side

The R1 Concepts 613-47042L RNC Slotted Brake Rotor is a precision-engineered, slotted disc brake rotor designed to deliver consistent, fade-resistant stopping performance. Part of R1 Concepts' RNC (No Cross-Drill) series, this rotor features a slotted braking surface that continuously sweeps away heat, gas, and debris from the pad contact area — maintaining a clean, fresh bite surface for more predictable braking response.

Key Features:

• Slotted Rotor Design: Slots channel heat, gases, and brake dust away from the pad surface, helping prevent pad glazing and maintaining consistent friction
• Zinc Protective Coating: The hat and vane areas are zinc-plated to resist corrosion, extending the service life and maintaining a clean appearance on the shelf and during initial use
• Double Disc Ground Surface: The braking surface is double disc ground for a smooth, flat finish that promotes even, faster pad bed-in and quieter operation
• Direct Fit Replacement: Engineered to OEM mounting specifications for straightforward, no-modification installation
• Left/Driver Side: This is a single rotor for the left (driver) side position — part number suffix "L" denotes driver-side fitment
• High-Carbon Casting: Manufactured from a high-carbon iron alloy for improved thermal capacity, reduced noise, and longer rotor life compared to standard grey iron castings

The R1 Concepts RNC series is ideal for drivers seeking an upgrade over a plain OEM-style rotor without the added complexity of cross-drilling. Slotted rotors are well-suited for street performance, daily driving, and light-duty towing applications where consistent braking feel is a priority. A proper bed-in procedure is recommended after installation to achieve optimal pad transfer and braking performance.