Dynamite Friction 633-31111R Disc Brake Rotor - Rear Right

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Black (part number 633-31111R) is engineered for BMW models including the 120i, 220i, 228i, 230i, 320i, 323i, 325i, 328d, 328i, and 428i. This vented disc brake rotor features a directional, slotted and drilled surface designed to enhance braking performance and heat dissipation.

• Compatible with BMW 120i, 220i, 228i, 230i, 320i, 323i, 325i, 328d, 328i, and 428i models
• Part Number: 633-31111R
• Vented rotor with drilled and slotted surface for improved cooling
• Directional brake surface for optimized braking efficiency
• Rust resistant zinc black hat finish and plain disc finish
• 5 bolt holes with 16.6 mm diameter and 120 mm bolt circle diameter
• Nominal thickness of 20 mm with discard thickness at 18.4 mm
• Overall diameter of 300 mm and height of 66.4 mm

Details on the DFC Brake Rotor - Drilled and Slotted - Black Line

The DFC Brake Rotor - Drilled and Slotted - Black line by Dynamite Friction focuses on rotors that combine drilled holes and slots on the braking surface to aid in heat dissipation and debris removal. The black zinc coating on the rotor hat provides corrosion resistance, extending the rotor's service life. This product line is designed to meet the demands of performance-oriented BMW vehicles, offering a balance between durability and braking responsiveness.

Technical Specifications and Features

This disc brake rotor is vented, allowing air to flow between the rotor surfaces to reduce heat buildup during braking. The directional surface pattern, featuring both drilled holes and slots, helps maintain consistent brake pad contact and reduces brake fade. The rotor's nominal thickness is 20 mm, with a discard thickness of 18.4 mm, ensuring safe replacement intervals. The rotor fits vehicles with a 5-lug bolt pattern, 16.6 mm bolt hole diameter, and a 120 mm bolt circle diameter. The overall diameter of 300 mm and height of 66.4 mm are designed to match the specified BMW models precisely.

Applications and Problem Solving

• Replacement for worn or warped rotors on compatible BMW 120i, 220i, 228i, 230i, 320i, 323i, 325i, 328d, 328i, and 428i models
• Improves heat dissipation to reduce brake fade during aggressive driving or heavy braking
• Helps prevent brake pad glazing by maintaining a clean rotor surface with drilled and slotted design
• Reduces rust and corrosion on the rotor hat with zinc black coating
• Maintains braking performance and safety with precise fitment and directional surface

Installation Notes and Tips

Ensure the rotor is installed with the directional surface facing the correct rotation direction as indicated on the rotor. Verify that the bolt hole pattern and diameter match the vehicle specifications. It is recommended to replace brake pads when installing new rotors to ensure optimal braking performance. Check rotor thickness before installation to confirm it meets or exceeds the discard thickness of 18.4 mm.

Quality Assurance

Dynamite Friction rotors are manufactured to meet OEM specifications for fit and function. The rust resistant zinc black coating on the rotor hat enhances durability against corrosion. While no specific warranty information is provided, adherence to OEM standards ensures reliable performance for the specified BMW models when installed correctly.