R1 Concepts 623-63077R RNC Series Drilled Brake Rotor

The R1 Concepts 623-63077R RNC Series Drilled Brake Rotor is a premium replacement brake rotor engineered for improved stopping performance and thermal management. Manufactured from high-grade G3000 gray iron casting, this rotor delivers consistent, fade-resistant braking under both everyday driving and demanding conditions.

The precision drilled hole pattern serves a dual purpose: it reduces unsprung rotational weight while allowing heat, gas, and debris to escape from the rotor surface, helping to maintain consistent pad contact and brake feel. Each rotor is precision-balanced and computer-optimized for runout tolerance to minimize brake pedal vibration and pulsation.

Key Features:

• Drilled hole pattern for superior heat dissipation and gas venting
• G3000 high-carbon gray iron construction for strength and durability
• Precision machined to strict OE tolerances for direct bolt-on fitment
• E-coating and zinc dichromate finish on non-swept areas to resist corrosion
• Computer-balanced to reduce vibration and brake pedal pulsation
• Direct OEM replacement — no modifications required

The R1 Concepts RNC rotor is designed as a direct OEM replacement, making installation straightforward without the need for any modifications. The corrosion-resistant finish on the hat and edges helps maintain appearance and longevity in all weather conditions.