R1 Concepts 830-55012L DFC GeoPerf Drilled Slotted Brake Rotor with GEOMET Coating - Left

The R1 Concepts 830-55012L is a left-side (driver side) drilled and slotted performance brake rotor from the DFC GeoPerf series, featuring a premium GEOMET® anti-corrosive coating for long-lasting rust protection and a refined appearance. Engineered to meet or exceed OEM specifications, this rotor installs as a direct-fit replacement requiring no modifications.

Key Features:

• Cross-Drilled Holes: Precision countersunk drill holes reduce rotor surface temperatures and enhance ventilation, minimizing brake fade during demanding driving conditions
• Diamond Slotted Design: Slots channel away brake dust, gas, and road debris, preventing pad glazing and extending both pad and rotor service life
• GEOMET® Anti-Corrosive Coating: Premium coating applied to the hub and vane structure provides superior rust protection, improving longevity and maintaining clean aesthetics behind the wheel
• G3000 Grade Cast Iron Construction: Manufactured from high-grade cast iron for optimal friction, durability, and thermal stability
• OEM Direct-Fit: Mill-balanced to reduce vibration and feedback; engineered to OE specifications for straightforward installation
• Left Side (Driver Side): Designed specifically for the left/driver-side position — confirm correct side before ordering

The 830 prefix in R1 Concepts' DFC numbering system denotes a drilled, slotted, and GEOMET-coated rotor — the top-tier finish in the GeoPerf lineup. This rotor is well-suited for street performance, light track use, towing, and off-road driving where consistent stopping power and corrosion resistance are essential. A proper brake bed-in procedure is recommended upon installation for optimal performance and even pad transfer.