R1 Concepts 830-63034L DFC GeoPerformance Drilled and Slotted Brake Rotor - Left

The R1 Concepts 830-63034L DFC GeoPerformance Brake Rotor is a premium drilled and slotted performance brake rotor finished with DFC's proprietary GEOSPEC corrosion-resistant coating. Designed as a direct-fit left-side replacement, this rotor delivers a significant upgrade over standard OE brake rotors for drivers seeking improved stopping performance and durability.

Drilled & Slotted Performance Design:

• Cross-drilled holes dissipate heat rapidly, reducing brake fade during hard or repeated stops
• Diamond-cut slots increase pad bite and sweep away gas, dust, and debris from the braking surface for consistent, confident stopping power
• Combined drilled and slotted design provides maximum benefits in stopping distance, especially in wet or demanding conditions

GEOSPEC Corrosion-Resistant Finish:

• Each rotor is finished with DFC's GEOSPEC coating applied to the entire rotor — including the hat, vanes, and non-braking surfaces
• Processed dry and shipped dry — no cleaning or prep required prior to installation
• Protects against rust and corrosion for improved appearance and longer service life

Quality & Precision:

• Machined to meet or exceed OE specifications for runout, thickness variation, and balance
• Every rotor passes a 100% electronic inspection measuring over 20 attributes before shipment
• Carbon alloy iron construction for strength and consistent thermal performance

The 830-63034L is a single left-side rotor. This DFC GeoPerformance rotor pairs seamlessly with DFC and R1 Concepts brake pads for an optimized braking system right out of the box.