Dynamite Friction 631-31024R Disc Brake Rotor - Rear Right

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-31024R) is engineered for BMW 525i, 525iT, 530i, and 535i models. This solid disc brake rotor features a directional, slotted and drilled surface designed to enhance braking performance and heat dissipation.

• Compatible with BMW 525i, 525iT, 530i, and 535i models
• Part number: 631-31024R
• Solid rotor with drilled and slotted surface
• Directional brake surface for optimized performance
• Rust resistant zinc silver hat finish
• Nominal thickness: 10 mm; discard thickness: 8.4 mm
• 5 bolt holes with 15 mm diameter and 120 mm bolt circle diameter
• Overall diameter: 300 mm; height: 61.1 mm

Product Line Details: DFC Brake Rotor - Drilled and Slotted - Silver

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction offers rotors designed with both drilled holes and slots to improve brake pad bite and aid in heat and gas dissipation. The silver zinc coating on the rotor hat provides corrosion resistance, extending rotor life. This product line focuses on solid rotors with directional surfaces, suitable for performance-oriented braking applications on compatible BMW vehicles.

Technical Specifications and Features

This disc brake rotor is constructed as a solid rotor with a 300 mm outside diameter and an overall height of 61.1 mm. The rotor surface is both drilled and slotted, which helps reduce brake fade by allowing heat and gases to escape more efficiently during braking. The directional surface design ensures optimal contact with brake pads for consistent stopping power. The rotor hat is finished with a zinc silver coating to resist rust and corrosion, maintaining structural integrity over time. The rotor includes five bolt holes, each 15 mm in diameter, arranged on a 120 mm bolt circle diameter, matching the stud/lug hole pattern for secure fitment.

Applications and Problem Solving

• Replacement rotor for worn or warped rotors on BMW 525i, 525iT, 530i, and 535i
• Improves heat dissipation to reduce brake fade during aggressive driving
• Helps eliminate brake noise and vibration caused by uneven rotor surfaces
• Addresses corrosion issues with rust resistant coating
• Enhances braking performance with directional drilled and slotted design

Installation Notes and Tips

Ensure the rotor thickness is above the discard thickness of 8.4 mm before installation. Clean the rotor surface to remove any protective coating or debris prior to mounting. Verify bolt hole alignment with the vehicle’s hub using the 5-bolt, 120 mm bolt circle pattern. Proper torque specifications should be followed to avoid rotor warping. Directional rotors must be installed with the rotation arrow pointing in the correct direction of wheel rotation for optimal performance.

Quality Assurance

Dynamite Friction manufactures this rotor to meet OEM specifications for fit and function on BMW 525i, 525iT, 530i, and 535i models. The rust resistant zinc silver coating and solid rotor construction contribute to durability and longevity. While no specific warranty information is provided, the product is designed to maintain consistent braking performance under normal operating conditions.