R1 Concepts 623-03020L RNC Series Drilled Disc Brake Rotor

The R1 Concepts 623-03020L RNC Series Drilled Brake Rotor delivers dependable stopping performance as a direct OE-style replacement. Engineered to OEM specifications, this rotor is precision-machined from high-quality G3000 gray cast iron for consistent thermal stability and long service life.

Key Features:

• Drilled Design: Precision-drilled holes help dissipate heat and gas buildup, reducing brake fade during demanding stops
• OE-Grade Cast Iron: Manufactured from G3000 gray iron for strength, durability, and quiet operation comparable to factory components
• Direct-Fit Replacement: Engineered to match OEM dimensions for straightforward, no-modification installation
• Balanced Construction: Computer-balanced to minimize vibration and pedal pulsation for smooth, confident braking
• Corrosion Inhibitor Coating: Protective coating applied to non-braking surfaces to resist rust and corrosion during storage and shipping
• Left-Side Application: Designed specifically for the driver-side (left) position — verify fitment before installation

The R1 Concepts RNC Series is built for drivers seeking a reliable, cost-effective OE replacement with the added benefit of a drilled surface pattern. Whether you're restoring braking performance on a daily driver or refreshing worn components, the 623-03020L is a straightforward upgrade over worn factory rotors.