Dynamite Friction 633-31088L Disc Brake Rotor - Rear Left

Overview of the DFC Brake Rotor - Drilled and Slotted - Black

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Black (part number 633-31088L) is engineered for BMW 125i and 128i models. This vented disc brake rotor combines drilled and slotted surface features with a rust-resistant zinc black hat finish to enhance braking performance and durability.

• Compatible with BMW 125i and 128i models
• Drilled and slotted directional surface for improved heat dissipation
• Vented rotor design to reduce brake fade
• Zinc black rust-resistant coating on the hat
• Nominal thickness of 20 mm with discard thickness at 18.4 mm
• 5 bolt holes with 14.5 mm diameter and 120 mm bolt circle diameter
• Overall diameter of 300 mm and height of 76.2 mm

Detailed Product Features and Specifications

This DFC Brake Rotor - Drilled and Slotted - Black features a vented rotor design that helps maintain optimal braking temperatures by allowing air to flow through the rotor. The surface is both drilled and slotted, providing directional brake surfaces that aid in removing brake dust, gases, and water for consistent stopping power. The rotor’s nominal thickness is 20 mm, with a discard thickness of 18.4 mm, ensuring a clear maintenance threshold for safety. The rotor’s hat is finished with a zinc black coating to resist corrosion, extending the rotor’s service life. With 5 bolt holes sized at 14.5 mm diameter and a bolt circle diameter of 120 mm, this rotor is designed to fit securely on compatible BMW 125i and 128i models.

About the DFC Brake Rotor - Drilled and Slotted - Black Product Line

The DFC Brake Rotor - Drilled and Slotted - Black line from Dynamite Friction focuses on rotors that combine drilled holes and slots for enhanced brake cooling and debris removal. This product line is designed to provide reliable braking performance under demanding conditions while offering corrosion resistance through specialized coatings. The black zinc finish on the rotor hat is a signature feature of this line, aimed at improving durability and appearance.

Applications and Problem Solving

• Reduces brake fade during aggressive driving or heavy braking
• Improves heat dissipation to prevent rotor warping
• Helps maintain consistent braking performance in wet conditions
• Minimizes brake dust buildup for cleaner brake components
• Protects against rust and corrosion for longer rotor life

Installation Notes and Tips

Ensure the rotor surface is clean and free of contaminants before installation. Verify the bolt hole pattern and diameter match your BMW 125i or 128i specifications. Use proper torque settings on lug nuts to avoid rotor distortion. It is recommended to replace brake pads when installing new rotors to optimize braking performance.

Quality Assurance

Dynamite Friction manufactures this rotor to meet OEM specifications for fit and function. The rust-resistant zinc black coating and vented design contribute to long-term durability. Please consult product documentation or contact the manufacturer for warranty details specific to part number 633-31088L.