R1 Concepts 623-54136R RNC Cross-Drilled Disc Brake Rotor

The R1 Concepts 623-54136R is a cross-drilled disc brake rotor from R1 Concepts' RNC series, engineered to deliver improved stopping performance over a standard blank replacement rotor. Built to OEM specifications for a direct-fit installation with no modifications required, this rotor is manufactured from G3000 grade cast iron for a balance of durability, thermal stability, and consistent braking performance.

Key Features:

• Cross-Drilled Pattern: Precision-drilled holes are countersunk and chamfered to reduce heat buildup, dissipate gases, and minimize the risk of cracking under repeated braking stress
• G3000 Cast Iron Construction: High-grade iron formulation provides excellent structural integrity and consistent pad contact across the full rotor face
• Zinc Plated Coating: Applied to the hub and vane structure to resist corrosion and extend the service life of the rotor; the coating on the braking surface wears away naturally during the bed-in process
• OEM Direct Fit: Manufactured to original equipment specifications — no drilling, cutting, or modification needed for installation
• Double Disc Ground Surface: Promotes faster, more even brake pad bed-in for quieter and smoother stopping performance right out of the box

R1 Concepts recommends always replacing brake pads when installing new rotors and following a proper bed-in procedure to seat the pads evenly and achieve optimal braking performance. This rotor is sold individually.