Dynamite Friction 631-31111R Disc Brake Rotor - Rear Right

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

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-31111R) 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 631-31111R for precise identification
• Vented disc design with drilled and slotted surface for improved cooling
• Directional brake surface to optimize braking efficiency
• Rust-resistant zinc silver hat finish and plain disc finish
• Nominal thickness of 20 mm with discard thickness at 18.4 mm
• 5 bolt holes with 16.6 mm diameter and 120 mm bolt circle diameter
• Overall diameter of 300 mm and height of 66.4 mm

Detailed Product Description

The DFC Brake Rotor - Drilled and Slotted - Silver from Dynamite Friction is designed to meet the braking demands of various BMW models, including the 120i, 220i, 228i, 230i, 320i, 323i, 325i, 328d, 328i, and 428i. This rotor features a vented design that helps dissipate heat more effectively during braking, reducing the risk of brake fade. The drilled and slotted surface improves water and debris evacuation, maintaining consistent braking performance in diverse driving conditions.

The rotor’s directional surface pattern is engineered to optimize pad contact and braking response. The zinc silver coating on the hat provides corrosion resistance, extending the rotor’s service life. With a nominal thickness of 20 mm and a discard thickness of 18.4 mm, this rotor ensures reliable performance throughout its lifespan. The 5-bolt hole configuration with a 120 mm bolt circle diameter matches the specified BMW models for a secure fit.

Applications and Problem Solving

• Replaces worn or warped rotors on compatible BMW models
• Improves braking performance under high heat conditions
• Reduces brake fade during aggressive or repeated braking
• Minimizes rust and corrosion with rust-resistant coating
• Enhances braking consistency in wet or debris-prone environments

Installation Notes and Tips

• Ensure compatibility with BMW 120i, 220i, 228i, 230i, 320i, 323i, 325i, 328d, 328i, and 428i models before installation
• Check rotor thickness and replace if below discard thickness of 18.4 mm
• Use proper torque specifications for the 5 bolt holes with 16.6 mm diameter
• Inspect brake pads and replace if worn to maintain optimal braking performance
• Follow manufacturer guidelines for bedding in new rotors

Quality Assurance and Warranty

Dynamite Friction’s DFC Brake Rotor - Drilled and Slotted - Silver is manufactured to meet industry standards for durability and performance. The rust-resistant zinc silver coating helps protect against corrosion, ensuring longevity. Please refer to Dynamite Friction’s warranty policy for specific coverage details related to the part number 631-31111R.