R1 Concepts 623-46037L RNC Series Drilled Performance Brake Rotor

The R1 Concepts 623-46037L RNC Series Drilled Brake Rotor is a high-performance replacement disc rotor engineered to deliver confident, consistent stopping power for street and light performance driving. Designed as a direct-fit, OEM-specification replacement, this rotor installs without modification for a straightforward swap.

Key Features:

• Cross-Drilled Design: Precision-drilled holes reduce heat buildup on the rotor surface, improve wet-weather bite, and help evacuate gas and debris from the braking surface
• Countersunk Drill Holes: Chamfered hole edges minimize the risk of cracking under thermal stress and extend rotor service life
• G3000 Grade Cast Iron Construction: Manufactured from high-grade cast iron for superior strength, heat absorption, and durability
• Corrosion-Resistant Coating: Silver zinc plating protects non-braking surfaces from rust and corrosion, improving appearance and longevity
• OEM-Spec Dimensions: Built to original equipment tolerances for a precise, no-modification-required fit
• Single Rotor (1PC): Sold individually — order the correct quantity for your application

R1 Concepts rotors are manufactured by one of the leading dedicated brake system brands in the automotive aftermarket. The drilled rotor design is well suited for daily driving, light performance use, and improved braking in wet conditions. As with any rotor replacement, brake pads should be replaced at the same time for optimal break-in and performance. A proper bed-in procedure is recommended after installation.