R1 Concepts 830-02121D GeoPerf Cross-Drilled Slotted Brake Rotor

The R1 Concepts 830-02121D GeoPerf Drilled and Slotted Brake Rotor is a high-performance replacement rotor engineered for drivers who demand superior stopping power and durability. Part of R1 Concepts' GEO-Carbon series, this rotor is designed to handle everything from everyday street driving to demanding performance use.

Key Features:

• Cross-Drilled and Diamond Slotted Design – Drill holes and slots work together to improve heat dissipation, increase pad bite, and efficiently evacuate gas and debris from the braking surface
• GeoPerf Geomet Coating – A premium zinc-based coating provides superior corrosion resistance compared to standard silver zinc plating, protecting the hub and vane structure for extended rotor life
• Meets or Exceeds OE Specifications – Precision-machined to OEM fitment standards for straightforward installation with no modifications required
• High-Carbon Alloy Construction – Improved thermal capacity reduces brake fade during repeated hard stops
• Balanced Performance – Suitable for daily driving, spirited street use, and light track or autocross applications

When you first receive the rotor, the braking surface will be fully coated. During the break-in process, the coating on the friction surface will wear away as designed, while the hub and internal vane structure remain protected. A proper break-in procedure is recommended to achieve optimal braking performance and pad transfer.