Dynamite Friction 830-31067L Disc Brake Rotor - Front Left

Overview of Dynamite Friction DFC Geoperformance Rotor

The Dynamite Friction DFC Geoperformance Rotor - Drilled and Slotted (part number 830-31067L) is engineered for BMW models including the 120i, 125i, 128i, 323i, 325i, 325xi, 328i, and 328xi. This vented disc brake rotor features a directional, slotted and drilled surface designed to enhance braking performance and heat dissipation.

• Part Number: 830-31067L
• Compatible with BMW 120i, 125i, 128i, 323i, 325i, 325xi, 328i, 328xi
• Disc Finish: Plain with Geospec silver grey hat finish
• Surface Type: Directional slotted and drilled
• Vented rotor design for improved cooling
• Rust resistant coating applied
• Dimensions: 300mm outside diameter, 24mm nominal thickness
• Bolt Hole Quantity: 5 with 14.7mm diameter
• Bolt Circle Diameter: 120mm
• Center Hole Diameter: 79mm

Detailed Product Description

The DFC Geoperformance Rotor - Drilled and Slotted by Dynamite Friction is designed to meet the braking demands of select BMW vehicles. This rotor features a vented design that helps dissipate heat more effectively during braking, reducing the risk of brake fade. The directional slotted and drilled surface improves water and debris evacuation, enhancing braking consistency in various driving conditions. The rotor’s plain disc finish combined with a Geospec silver grey hat finish provides corrosion resistance and a clean appearance. With a nominal thickness of 24mm and a discard thickness of 22.4mm, this rotor maintains structural integrity and performance throughout its service life. The 5-bolt hole pattern with a 120mm bolt circle diameter ensures precise fitment on compatible BMW models.

DFC Geoperformance Rotor - Drilled and Slotted Product Line

The DFC Geoperformance Rotor - Drilled and Slotted line focuses on delivering rotors with enhanced surface designs such as drilling and slotting to improve braking efficiency and heat management. This product line is tailored for drivers seeking rotors that balance performance and durability, particularly for vehicles like the BMW 3 Series and 1 Series models listed. The directional surface pattern is engineered to optimize brake pad contact and reduce noise and vibration.

Applications and Problem Solving

• Improves braking performance under high heat conditions
• Reduces brake fade during aggressive or repeated braking
• Enhances water and debris removal from the rotor surface
• Prevents rust and corrosion with protective coating
• Maintains consistent braking feel for BMW 120i, 125i, 128i, 323i, 325i, 325xi, 328i, and 328xi

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness of 22.4mm before installation
• Verify bolt hole pattern matches vehicle specifications (5 holes, 120mm bolt circle diameter)
• Clean rotor surface before installation to remove any protective oils
• Use proper torque specifications for lug nuts to avoid rotor warping
• Check compatibility with existing brake pads for optimal performance

Quality Assurance

Dynamite Friction manufactures the 830-31067L rotor with rust-resistant coatings and precise machining to meet OEM standards. While specific warranty details are not provided, the product is designed to maintain performance and durability consistent with professional automotive requirements.