Dynamite Friction 830-31089R Disc Brake Rotor - Front Right

Overview of Dynamite Friction DFC Geoperformance Rotor

The Dynamite Friction DFC Geoperformance Rotor - Drilled and Slotted (Part Number 830-31089R) is engineered for BMW models requiring reliable braking performance. Designed with a vented, directional surface, this rotor enhances heat dissipation and braking consistency for vehicles such as the BMW 320i, 328i xDrive, and 430i Gran Coupe.

• Disc type: Vented disc brake rotor with drilled and slotted surface
• Nominal thickness: 23.8 mm with a discard thickness of 22.4 mm
• Outside diameter: 312 mm for optimal fitment
• Hat finish: Geospec silver grey with rust-resistant coating
• Bolt pattern: 5 lug holes with 14.5 mm diameter and 120 mm bolt circle diameter
• Directional brake surface for improved water and debris evacuation
• Center hole diameter: 79 mm for precise hub alignment

DFC Geoperformance Rotor - Drilled and Slotted Product Line

The DFC Geoperformance Rotor - Drilled and Slotted line by Dynamite Friction focuses on rotors that combine drilled holes and slots to improve braking efficiency and heat management. This product line is designed to reduce brake fade and maintain consistent stopping power under demanding conditions. The vented rotor design further aids in cooling, making it suitable for BMW vehicles that require dependable performance in both daily driving and spirited use.

Detailed Product Description

This disc brake rotor features a plain disc finish paired with a Geospec silver grey hat finish, providing corrosion resistance and durability. The rotor’s drilled and slotted surface is directional, which helps channel water, dust, and gases away from the braking surface, enhancing pad contact and reducing brake fade. With a bolt hole diameter of 14.5 mm and a 5-lug bolt pattern spaced at 120 mm, this rotor is compatible with a range of BMW models including the 220i, 228i xDrive, 328d, 330i GT xDrive, and X1. The overall height of 73.6 mm and center hole diameter of 79 mm ensure proper fitment and alignment on the hub assembly.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Improved heat dissipation to reduce brake fade during extended braking
• Enhanced braking performance in wet conditions due to directional drilled and slotted design
• Corrosion resistance to extend rotor lifespan in harsh environments
• Compatibility with multiple BMW models requiring a 312 mm rotor diameter and 5-lug bolt pattern

Installation Notes and Tips

Ensure the rotor is installed on compatible BMW models listed in the fitment section. Verify the bolt pattern and center hole diameter match the vehicle hub. Clean the rotor surface before installation to remove any protective coatings or residues. Use proper torque specifications for lug nuts to avoid rotor warping. It is recommended to replace brake pads simultaneously to maintain optimal braking performance.

Quality Assurance and Warranty

Dynamite Friction manufactures the 830-31089R rotor with rust-resistant coatings and precision machining to meet OEM standards. While specific warranty details are not provided, the product is designed to deliver consistent performance and durability for BMW vehicles requiring drilled and slotted rotors. For warranty information, refer to Dynamite Friction’s official documentation or contact the manufacturer directly.