R1 Concepts 830-11026L GeoPerf Drilled Slotted Brake Rotor - Left

The R1 Concepts 830-11026L GeoPerf Drilled and Slotted Brake Rotor is a high-performance, single left-side (driver's side) replacement rotor from R1 Concepts' GEO-Carbon series. Engineered to meet or exceed OEM specifications, this rotor delivers a direct-fit upgrade over factory brakes with noticeably improved stopping power, heat management, and durability.

Key Features:

• G3000 Grade Cast Iron Construction: Premium iron grade provides exceptional thermal stability, structural rigidity, and long-lasting braking performance
• Cross-Drilled Holes: Precision-drilled and chamfered holes reduce rotor heat buildup by up to 105°F while a countersunk design minimizes the risk of cracking during the bed-in process
• Diamond Slot Technology: Diamond-slotted grooves sweep away brake dust, road debris, and gases to prevent pad glazing and extend the life of both pad and rotor; diamond-tipped slot ends also serve as a rotor wear indicator
• Carbon GEOMET® Coating: A proprietary specialty coating provides long-lasting, superior corrosion and rust protection across the entire rotor surface, including the hat and vanes, while also reducing installation time
• OEM-Compatible Fitment: Built to factory specifications for a direct bolt-on installation with no modifications required
• Left-Side (Driver's Side) Rotor: Single rotor sold individually; designed for the front or rear left position depending on application

The R1 Concepts GeoPerf series is well-suited for daily driving, street performance, light track use, towing, hauling, and off-road applications. The combination of cross-drilling and diamond slotting delivers the maximum benefit in stopping power and thermal management for drivers seeking a confident upgrade over stock rotors.