Dynamite Friction 810-31109L Disc Brake Rotor - Rear Left

Overview of Dynamite Friction DFC Geoperformance Rotor - Slotted

The Dynamite Friction DFC Geoperformance Rotor - Slotted (Part Number 810-31109L) is engineered for BMW models including the 328i, 330i, 335i, 340i, 428i, 430i, 435i, 440i, and ActiveHybrid 3 variants. This vented, directional disc brake rotor features a slotted surface designed to enhance braking performance and heat dissipation under demanding conditions.

• Compatible with multiple BMW models such as 328i xDrive, 335i GT xDrive, 430i Gran Coupe, and more
• Directional slotted surface for improved brake pad cleaning and heat management
• Vented rotor design with 330 mm outside diameter for efficient cooling
• Rust resistant coating with Geospec silver grey hat finish for corrosion protection
• Precision bolt pattern: 5 lug holes with 16.8 mm diameter and 120 mm bolt circle diameter
• Nominal thickness of 20 mm and discard thickness of 18.4 mm for reliable service life monitoring

Detailed Product Features and Specifications

The DFC Geoperformance Rotor - Slotted is a vented disc brake rotor with an overall height of 66.4 mm and a center hole diameter of 75 mm, designed to fit specific BMW models requiring a 5-lug bolt pattern. The slotted surface type helps to channel away brake dust and gases, reducing brake fade and maintaining consistent stopping power. The rotor’s plain disc finish combined with a rust resistant coating and Geospec silver grey hat finish ensures durability and resistance to corrosion over time. The rotor’s directional design optimizes braking efficiency by aligning the slots in a pattern that supports heat dissipation and pad bite.

DFC Geoperformance Rotor - Slotted Product Line

The DFC Geoperformance Rotor - Slotted line from Dynamite Friction focuses on delivering rotors with enhanced surface technology and corrosion resistance. This product line emphasizes directional slotted rotors that improve braking performance by maintaining cleaner pad surfaces and better heat management. The Geospec silver grey hat finish and rust resistant coating are standard features in this line, providing extended rotor life and reliable performance in various driving conditions.

Applications and Problem Solving

• Replacement for worn or warped rotors on compatible BMW 3 and 4 Series models
• Improves braking consistency under high heat conditions to reduce brake fade
• Helps prevent rust and corrosion on rotor surfaces for longer service intervals
• Addresses brake noise and vibration issues caused by uneven rotor surfaces
• Enhances pad bite and braking response with slotted directional design

Installation Notes and Tips

Ensure the rotor is installed on compatible BMW models listed, verifying the 5-lug bolt pattern and 120 mm bolt circle diameter. Clean the rotor surface before installation to remove any protective coatings or residues. Proper torque specifications should be followed for lug nuts to avoid rotor warping. It is recommended to replace brake pads simultaneously to optimize braking performance and rotor longevity.

Quality Assurance and Warranty

Dynamite Friction manufactures the DFC Geoperformance Rotor - Slotted to meet or exceed OEM specifications for fit, form, and function. The rotor includes a rust resistant coating and durable finishes to ensure long-term reliability. Warranty details are provided by the manufacturer and should be reviewed prior to installation.