Dynamite Friction 604-31108 Disc Brake Rotor - Front

Overview of Dynamite Friction DFC GEOSPEC Coated Rotor 604-31108

The Dynamite Friction DFC GEOSPEC Coated Rotor 604-31108 is engineered for precision braking performance on select BMW models. Designed as a vented disc brake rotor, it offers reliable heat dissipation and consistent stopping power for vehicles such as the BMW 328i xDrive and 435i Gran Coupe.

• Nominal thickness: 30 mm
• Discard thickness: 28.4 mm
• Outside diameter: 340 mm
• Inside diameter: 79 mm
• Bolt hole diameter: 16.6 mm
• Bolt hole quantity: 5
• Height: 73.6 mm
• Vented rotor design for improved cooling

DFC GEOSPEC Coated Rotor Product Line Details

The DFC GEOSPEC Coated Rotor line by Dynamite Friction focuses on rotors with a protective coating that helps resist corrosion and extends rotor life. This coating is particularly beneficial for vehicles exposed to varying weather conditions, maintaining rotor integrity and performance over time. The 604-31108 rotor incorporates this coating while meeting strict dimensional specifications for BMW models, ensuring compatibility and durability.

Technical Description and Specifications

This disc brake rotor features a vented design that enhances heat dissipation during braking, reducing the risk of brake fade under demanding conditions. With a nominal thickness of 30 mm and a discard thickness of 28.4 mm, the rotor provides a clear service life indicator to maintain optimal braking safety. The 340 mm outside diameter and 79 mm inside diameter are matched precisely to fit specific BMW models, secured by five bolt holes each measuring 16.6 mm in diameter. The rotor height of 73.6 mm ensures proper alignment within the brake assembly.

Compatible BMW Models and Applications

• BMW 118i, 120i, 228i, 228i xDrive
• BMW 230i, 230i xDrive, 320i, 328d xDrive
• BMW 328i, 328i xDrive, 330i, 330i xDrive
• BMW 335i, 335i GT xDrive, 335i xDrive, 340i
• BMW 340i GT xDrive, 340i xDrive, 428i, 428i Gran Coupe
• BMW 428i xDrive, 428i xDrive Gran Coupe, 430i, 430i Gran Coupe
• BMW 430i xDrive, 430i xDrive Gran Coupe, 435i, 435i Gran Coupe
• BMW 435i xDrive, 435i xDrive Gran Coupe, 440i, 440i Gran Coupe
• BMW 440i xDrive, 440i xDrive Gran Coupe, ActiveHybrid 3
• BMW M135i, M140i, M235i, M235i xDrive, M240i, M240i xDrive

Common Issues Addressed by This Rotor

• Brake rotor warping due to heat buildup
• Corrosion and rust on rotor surfaces
• Reduced braking efficiency from worn rotors
• Brake noise caused by uneven rotor wear
• Maintaining proper rotor thickness for safety

Installation Notes and Tips

Ensure the rotor surface and hub are clean and free of debris before installation. Verify the rotor thickness is above the discard thickness of 28.4 mm to maintain braking performance. Use the correct torque specifications for the five 16.6 mm bolt holes to secure the rotor properly. It is recommended to inspect brake pads and replace them if worn to optimize rotor performance.

Quality Assurance and Warranty

Dynamite Friction manufactures the DFC GEOSPEC Coated Rotor 604-31108 to meet OEM standards for fitment and durability. The protective coating enhances corrosion resistance, contributing to longer rotor life. While specific warranty details are not provided, Dynamite Friction products typically adhere to industry quality controls to ensure reliable braking performance on compatible BMW models.