Dynamic Friction 4214-40112 DFC GeoSpec Coated Plain Disc Brake Rotor

The Dynamic Friction Company 4214-40112 is a GeoSpec Coated plain (smooth) disc brake rotor engineered as a direct OE replacement. Featuring DFC's proprietary GeoSpec silver-gray coating, this rotor delivers superior corrosion resistance and arrives ready to install—no pre-degreasing or additional preparation required.

GeoSpec Coating Technology:

Unlike conventional paint or zinc coatings, the GeoSpec coating forms a durable, attractive silver-gray finish that fights rust far more effectively. The coating is safely swept away by the friction material during normal use, with no harmful effects to pads or braking performance.

Key Features:

• Premium Iron Casting: Engineered with G3000/G11H18 iron castings for exceptional strength, stability, and long-term durability
• CNC-Machined: Precision machined to the tightest tolerances available for optimal fit and performance
• OE Vane Configuration: Original Equipment vane design ensures proper and maximum heat dissipation during braking
• Mill-Balanced: 100% precision cut and electronically mill-balanced for smoother stopping and zero vibration at any speed
• Non-Directional Finish: Promotes faster brake pad bed-in and quieter, smoother stops from the start
• Superior Corrosion Protection: GeoSpec coating outperforms conventional zinc and painted finishes for lasting rust resistance
• 100% Inspected: Every rotor passes a full inspection station verifying all critical attributes meet OE specifications
• Ready to Install: Processed and shipped dry—no cleaning or prep work needed before installation

Specifications:

• Disc Finish: Plain (Smooth)
• Hat Finish: GeoSpec Silver-Gray
• Outside Diameter: 330mm (13.0 in)
• Nominal Thickness: 28mm (1.10 in)
• Discard Thickness: 26.4mm (1.04 in)
• Inside Diameter: 72.5mm (2.85 in)
• Overall Height: 38mm (1.50 in)
• Bolt Hole Quantity: 5
• Bolt Hole Diameter: 14.5mm
• Lug Circle Diameter: 127mm (5.0 in)
• Rotor Type: Vented
• Surface Type: Smooth / Non-Directional
• Material: Cast Iron (G3000/G11H18)

The Dynamic Friction GeoSpec Coated rotor is designed to meet the same form, fit, and function as OEM brake rotors, making it an ideal replacement for daily driving, normal commute, and light truck applications.