R1 Concepts 830-74022L GeoPerf Drilled Slotted Brake Rotor - Left

The R1 Concepts 830-74022L GeoPerf Drilled & Slotted Brake Rotor is a high-performance, left-side (driver's side) disc brake rotor engineered for drivers who demand superior stopping power and long-lasting durability. Manufactured by DFC — part of the R1 Concepts corporate family — this rotor carries the 830-series designation, confirming its cross-drilled, slotted, and Geomet-coated construction.

Key Features:

• Cross-Drilled & Diamond Slotted Design: Maximizes brake bite, reduces heat buildup, and expels gas and debris from the rotor surface for consistent, fade-resistant stopping power
• Geomet Protective Coating: Advanced corrosion-resistant finish protects the hub, vanes, and non-swept surfaces for improved appearance and extended service life without the bulk of traditional zinc plating
• High-Performance Versatility: Engineered to handle everyday street driving, spirited performance driving, and light track use
• Directional Left-Side Fitment: The "L" suffix designates this as the left (driver's side) rotor — confirm vehicle fitment before ordering
• Precision Machined: Manufactured to strict tolerances for proper pad contact, minimal runout, and vibration-free braking

The 830-74022L is a direct-fit replacement rotor that delivers upgraded performance over OEM-style blanks. The Geomet coating begins as a full-surface silver finish; during the break-in process, the coating on the swept braking surface will naturally wear away, leaving the hub and vane structure protected. A proper brake bed-in procedure is recommended upon installation to achieve optimal pad transfer and braking performance.