Dynamic Friction 830-76120L GeoPerf Drilled Slotted Brake Rotor - Front Left

The Dynamic Friction 830-76120L is a GeoPerf series cross-drilled and slotted disc brake rotor designed for drivers who demand enhanced stopping performance over a standard OE replacement rotor. The 830 series combines a performance-oriented drilled and slotted design with Dynamic Friction Company's premium GeoPerf coating for superior rust and corrosion resistance.

Drilled & Slotted Performance Design:

• Cross-drilled holes reduce heat buildup during repeated or heavy braking, helping maintain consistent pedal feel
• Chamfered drill holes minimize stress risers to reduce the potential for rotor cracking under load
• Machined slots evacuate brake dust, gases, and road debris from the rotor face, preventing pad glazing and maintaining bite
• Slotted design provides shorter stopping distances, especially in wet weather conditions

Construction & Finish:

• Cast from G3000/G11H18 specification gray iron to match OEM material standards for durability and thermal stability
• GeoPerf (Geomet) coating applied to hub, vents, and rotor edge for long-lasting rust protection and a clean appearance
• Non-directional surface finish promotes faster, more even brake pad bed-in for quieter and smoother stops from day one
• 100% mill-balanced using electronic precision equipment — zero vibration or pulsation at any speed
• Machined to the tightest tolerances in the market for runout-free performance

Ready to Install:

• New in box — no modifications, machining, or resurfacing required
• OE vane configuration ensures proper airflow and maximum heat dissipation
• Position: Front Left (Driver Side)

The Dynamic Friction 830-76120L is engineered for drivers in demanding conditions including high-speed driving, heavy traffic, steep grades, towing, and performance street use. It is a direct-fit, bolt-on replacement that restores and upgrades braking system performance.