R1 Concepts 830-63165R DFC GeoPerf Drilled & Slotted Brake Rotor

The R1 Concepts 830-63165R is a DFC GeoPerf Series drilled and slotted brake rotor engineered for drivers who demand superior stopping power and consistent fade-free performance. Combining precision cross-drilling with performance slot patterns, this rotor actively evacuates heat, gas, and debris from the braking surface — keeping your brake pads biting hard when it matters most.

R1 Concepts manufactures the GeoPerf rotor using high-carbon grey iron for excellent thermal conductivity and durability. Each rotor undergoes computer-balanced precision machining to ensure runout-free installation and smooth, vibration-free braking right out of the box.

Key Features:

• Drilled & Slotted Design — Cross-drilled holes improve heat dissipation and reduce unsprung weight; slots continuously sweep the pad surface clean for consistent bite
• GeoPerf Geometric Slot Pattern — R1 Concepts' proprietary slot geometry maximizes pad-to-rotor contact efficiency and extends pad life
• High-Carbon Grey Iron Construction — Premium metallurgy resists warping, cracking, and thermal stress under repeated heavy braking
• Precision Balanced — Computer-optimized for minimal runout and smooth, vibration-free pedal feel
• Zinc Dichromate Coating — Corrosion-resistant finish on non-swept surfaces protects against rust and improves appearance
• Direct OE Replacement — Designed to install using factory hardware with no modifications required

The R1 Concepts 830-63165R GeoPerf rotor is an ideal upgrade from stock rotors for street performance, spirited driving, and light track use. Pair with R1 Concepts performance brake pads for a complete friction system upgrade.