R1 Concepts 623-31023R RNC Series Drilled Brake Rotor

The R1 Concepts 623-31023R RNC Series Drilled Brake Rotor delivers reliable stopping power in a direct OE-replacement package. Engineered from premium G3000 grade cast iron, this rotor provides consistent thermal stability and excellent fade resistance under repeated braking cycles.

The drilled pattern across the rotor face promotes rapid heat dissipation and helps evacuate gas, water, and debris from the braking surface, maintaining firm pedal feel in a variety of driving conditions. Each rotor is precision-machined to strict tolerances for proper fitment and minimal runout right out of the box.

Key Features:

• Manufactured from high-carbon G3000 grade cast iron for durability and consistent performance
• Cross-drilled holes improve heat dissipation and reduce brake fade
• Precision-machined for minimal lateral runout and smooth, vibration-free braking
• Zinc-washed or e-coated hat and edges to resist corrosion during storage and service life
• Direct OE replacement — no modifications required for installation
• Balanced and ready to install; meets or exceeds OEM specifications

R1 Concepts is a performance brake specialist known for producing rotors that bridge the gap between everyday street driving and spirited performance use. The RNC rotor is an ideal upgrade or replacement for drivers seeking improved braking response over a standard smooth rotor.