R1 Concepts 623-28002L RNC Series Drilled Brake Rotor - Left

The R1 Concepts 623-28002L RNC Series Drilled Brake Rotor is a precision-engineered replacement brake rotor designed to meet or exceed OEM performance standards. Featuring drilled holes across the rotor face, this rotor promotes improved heat dissipation, reduced brake fade, and enhanced wet-weather braking performance by allowing gases, heat, and water to escape quickly during braking.

R1 Concepts manufactures this rotor from high-carbon grey iron, providing excellent thermal stability and resistance to warping under repeated high-temperature braking cycles. Each rotor is balanced and finished with a zinc dichromate coating on non-contact surfaces to resist corrosion and maintain a clean, professional appearance.

Key Features:

• Drilled rotor design for superior heat dissipation and reduced brake fade
• High-carbon grey iron construction for durability and thermal resistance
• Zinc dichromate coating on non-friction surfaces for corrosion protection
• Precision-balanced for smooth, vibration-free braking
• Left (driver) side fitment — sold as a single rotor
• Meets or exceeds OEM specifications for direct, no-modification installation
• Compatible with OEM and aftermarket brake calipers and pads

The R1 Concepts RNC drilled rotor is an excellent upgrade or direct replacement for drivers seeking improved braking performance and a sportier appearance. As with all brake rotor replacements, rotors should be replaced in axle pairs and paired with fresh brake pads for optimal performance and even wear.