Dynamite Friction 631-31061L Disc Brake Rotor - Rear Left

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-31061L) is engineered for BMW Z4 models requiring reliable braking performance. This vented disc brake rotor features a directional, slotted and drilled surface designed to enhance heat dissipation and maintain consistent stopping power under demanding conditions.

• Compatible with BMW Z4 vehicles
• Directional slotted and drilled surface for improved brake cooling
• Vented rotor design to reduce heat buildup
• Nominal thickness of 19 mm with a discard thickness of 17.4 mm
• Zinc silver hat finish with rust-resistant coating
• Five bolt holes with 14.2 mm diameter and 120 mm bolt circle diameter
• Overall diameter of 294 mm and height of 75 mm

Detailed Product Features and Specifications

This DFC Brake Rotor - Drilled and Slotted - Silver is constructed with a vented rotor type that helps dissipate heat more effectively than solid rotors, reducing the risk of brake fade during extended use. The rotor’s surface is both drilled and slotted, which assists in channeling away brake dust, gases, and water, improving braking consistency and pad bite. The directional brake surface is designed to optimize performance when installed in the correct orientation.

The rotor measures 294 mm in outside diameter and 75 mm in overall height, with a nominal thickness of 19 mm and a discard thickness of 17.4 mm, ensuring it meets precise fitment requirements for the BMW Z4. The zinc silver hat finish provides corrosion resistance, complemented by an overall rust-resistant coating to extend rotor life. The five bolt holes, each 14.2 mm in diameter, align with a 120 mm bolt circle diameter, matching the BMW Z4’s hub specifications.

DFC Brake Rotor - Drilled and Slotted - Silver Product Line

The DFC Brake Rotor - Drilled and Slotted - Silver line from Dynamite Friction focuses on rotors that combine drilled holes and slots with a corrosion-resistant finish. This product line is designed to offer enhanced heat management and braking performance for vehicles like the BMW Z4, where maintaining consistent brake response is critical. The silver zinc finish adds durability against rust, making these rotors suitable for various driving conditions.

Applications and Problem Solving

• Improves brake cooling to reduce fade during spirited driving or heavy braking
• Helps prevent brake pad glazing by channeling away dust and gases
• Reduces corrosion with rust-resistant coating for longer rotor life
• Maintains consistent braking performance with directional slotted and drilled design
• Ensures proper fitment and safety for BMW Z4 brake systems

Installation Notes and Tips

When installing the Dynamite Friction 631-31061L rotor on a BMW Z4, ensure the directional surface is oriented correctly according to the rotation of the wheel for optimal performance. Verify that the rotor thickness is within the nominal range and above the discard thickness before installation. Clean the rotor surface to remove any protective coatings or residues prior to mounting. Use proper torque specifications on the five lug bolts to secure the rotor firmly.

Quality Assurance and Warranty

Dynamite Friction manufactures the 631-31061L rotor to meet OEM specifications for fit and function on BMW Z4 models. The rust-resistant zinc silver finish and vented design contribute to durability and consistent braking performance. Warranty details are provided by Dynamite Friction and should be confirmed at the time of purchase.