R1 Concepts 830-27034L DFC GeoPerformance Drilled Slotted Brake Rotor - Left

The R1 Concepts 830-27034L is a DFC GeoPerformance Series cross-drilled and slotted brake rotor engineered for drivers who demand both performance and durability. Manufactured by Dynamic Friction Company (DFC) under the R1 Concepts brand, this is a left-side (driver side) single rotor featuring the premium Geomet corrosion-resistant coating.

The 830-series designation identifies this rotor as a fully drilled, slotted, and Geomet-coated unit — DFC's top-performing street rotor configuration. The cross-drilled holes evacuate heat from the rotor face during aggressive braking, while the precision-cut slots continuously sweep brake dust and debris away from the pad surface to prevent glazing and maintain consistent bite.

Key Features:

• Cross-Drilled & Slotted Design — Improves heat dissipation and pad bite for shorter stopping distances, especially in wet conditions
• Geomet Corrosion-Resistant Coating — Silver zinc-based coating protects the rotor hub and vanes from rust and corrosion for a cleaner, longer-lasting appearance
• Left-Side Fitment (Driver Side) — Directionally specific rotor; confirm correct side before installation
• OEM-Grade Metallurgy — Precision machined to OEM specifications for direct bolt-on fitment with no modifications required
• Performance Street & Track Use — Suitable for daily driving, spirited street use, and light track applications
• Anti-Pad Glazing Slots — Continuously clean the pad surface to maintain consistent friction and pedal feel

Upon initial installation, the Geomet coating covers the entire rotor surface. During the break-in bedding process, the coating on the braking surface will naturally wear away, leaving the hub, vanes, and hat protected. A proper bedding procedure is recommended to achieve optimal performance and even pad transfer.