R1 Concepts 613-37001L RNC Series Slotted Brake Rotor

The R1 Concepts 613-37001L RNC Series Slotted Brake Rotor is a performance-grade replacement rotor engineered for drivers who demand consistent, fade-resistant stopping power. Featuring a precisely machined slotted rotor surface, this left-side rotor helps expel heat, gas, and debris from the brake pad contact area — maintaining a cleaner pad surface and more reliable braking performance under a variety of driving conditions.

R1 Concepts rotors are manufactured using premium G3000 grey iron castings that meet or exceed OEM metallurgical standards, delivering the durability and thermal capacity needed for both daily driving and spirited use. Each rotor undergoes computerized balancing and precision machining to ensure smooth, vibration-free operation right out of the box.

Key Features:

• Slotted Design: Continuous slots channel away heat, gas, and brake dust for consistent pad bite and reduced fade
• Premium G3000 Cast Iron: High-quality iron alloy provides excellent thermal conductivity and long rotor life
• Precision Machined: Computer-balanced for smooth, wobble-free braking and minimal noise
• Direct OEM Replacement: Engineered to match factory dimensions for a straightforward, bolt-on installation
• Zinc Dichromate Coating: Protective coating on non-friction surfaces resists corrosion during storage and service life
• Left-Side Application: Designated driver-side (left) fitment for proper directional installation

The R1 Concepts RNC slotted brake rotor is an ideal upgrade from worn OEM rotors, offering improved thermal performance and a sportier feel without requiring any modifications. Sold individually — confirm vehicle fitment before ordering.