R1 Concepts 623-63128L RNC Series Drilled Brake Rotor

The R1 Concepts 623-63128L is a RNC Series drilled brake rotor engineered for improved stopping performance and thermal management. R1 Concepts rotors are precision-machined from high-carbon gray iron, providing excellent durability and consistent pedal feel under a wide range of driving conditions.

The drilled pattern across the rotor face serves a dual purpose: it allows heat, gas, and debris to escape from the braking surface, reducing brake fade during repeated or aggressive stops. This design also contributes to a cleaner, more responsive brake feel compared to a standard blank rotor.

Key Features:

• Drilled rotor design for improved heat dissipation and reduced brake fade
• Precision-machined from high-carbon gray iron for strength and longevity
• Zinc-plated hat and outer edges to resist corrosion and improve appearance
• Balanced to minimize vibration and rotor runout
• Direct OE replacement fitment — no modifications required
• Manufactured to strict dimensional tolerances for reliable performance

The R1 Concepts RNC Series is a popular upgrade for drivers seeking enhanced braking performance and a cleaner appearance over stock rotors. Each rotor is quality-inspected before shipment to ensure it meets dimensional and balance specifications.