R1 Concepts 830-72035L GeoPerf Drilled Slotted Brake Rotor

The R1 Concepts 830-72035L GeoPerf Drilled and Slotted Brake Rotor is a high-performance replacement rotor engineered to deliver superior stopping power and long-lasting durability. Built to meet or exceed OEM specifications, this rotor installs without modification and is designed for drivers who demand more from their braking system.

Constructed from G3000 grade cast iron, the rotor features a premium GEOMET® protective finish that provides exceptional corrosion resistance, extending the life of the rotor while maintaining a clean, professional appearance. The GEOMET coating covers the entire rotor — including the hub and vane structure — for comprehensive rust protection.

Key Features:

• Cross-Drilled Holes: Precision-drilled and chamfered holes reduce rotor surface heat by up to 105°F, improving fade resistance and overall thermal management
• Diamond Slot Technology: Slots sweep away brake dust, road debris, and gases to prevent pad glazing and extend pad life; diamond-tipped slot ends serve as a rotor wear indicator
• GEOMET® Finish: Premium anti-corrosion coating provides superior rust protection compared to standard zinc plating, covering the full rotor surface
• G3000 Cast Iron Construction: OEM-grade iron alloy delivers consistent, stable braking performance across a wide temperature range
• OEM Direct Fit: Engineered to factory specifications for straightforward, no-modification installation
• Countersunk Drill Holes: Countersunk design prevents stress cracking and promotes a smoother bed-in process

This rotor is well-suited for daily street driving, light track or rally use, towing and hauling, and off-road applications. A proper break-in procedure is recommended upon installation to seat the pads and achieve optimal braking performance.