R1 Concepts 613-40088L RNC Series Slotted Brake Rotor

The R1 Concepts 613-40088L is a RNC Series slotted brake rotor engineered for drivers who demand consistent stopping performance and extended rotor life. R1 Concepts rotors are precision-machined from high-quality gray iron and designed to meet or exceed OEM specifications, making them a direct-fit replacement for the original equipment rotor.

The slotted surface design channels heat, gas, and debris away from the brake pad contact surface, reducing brake fade during repeated or aggressive stopping. The slots also help maintain a cleaner pad surface for more consistent bite and improved pedal feel over the life of the rotor.

Key Features:

• Slotted rotor design for improved heat dissipation and gas evacuation
• Precision CNC-machined for consistent thickness variation and runout tolerances
• High-quality gray iron construction for durability and thermal stability
• Direct OEM replacement fit — no modification required
• Left-side application (driver side or rear left, as applicable)
• E-coating or protective finish helps resist rust and corrosion during storage and break-in

R1 Concepts brake rotors are a popular upgrade for daily drivers and performance-oriented vehicles looking for improved braking consistency over standard OEM rotors. Pair with R1 Concepts brake pads for an optimized brake system upgrade.