Dynamite Friction 631-80037L Disc Brake Rotor - Rear Left

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

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-80037L) is engineered for Mazda Miata models requiring reliable braking performance. This solid disc brake rotor features a directional, slotted and drilled surface designed to enhance heat dissipation and maintain consistent stopping power.

• Compatible with Mazda Miata vehicles
• Solid disc rotor with drilled and slotted surface
• Nominal thickness of 10 mm and discard thickness of 8 mm
• Zinc silver hat finish with rust-resistant coating
• Directional brake surface for optimized performance
• Four bolt holes with 100 mm bolt circle diameter
• Overall diameter of 275.5 mm and center hole diameter of 55.1 mm

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

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on rotors that combine drilled holes and slots to improve brake pad bite and reduce heat buildup. This product line is designed to provide enhanced braking consistency and durability, particularly for vehicles like the Mazda Miata that benefit from precise brake control. The zinc silver hat finish and rust-resistant coating help extend rotor life by protecting against corrosion.

Technical Specifications and Features

This disc brake rotor is a solid type with a nominal thickness of 10 mm and a discard thickness of 8 mm, ensuring it meets safety standards for wear limits. The rotor’s surface is both drilled and slotted, which aids in venting gases and debris from the brake pad interface, improving braking efficiency. The directional surface design supports optimal water and dust dispersion during operation. The rotor measures 275.5 mm in outside diameter and 34.4 mm in overall height, with a center hole diameter of 55.1 mm. It features four bolt holes with a 100 mm bolt circle diameter, matching the Mazda Miata’s hub specifications.

Applications and Problem Solving

• Restores braking performance on Mazda Miata vehicles with worn or damaged rotors
• Reduces brake fade caused by heat buildup during aggressive driving or track use
• Improves water and debris evacuation for consistent braking in wet conditions
• Minimizes rotor warping and extends service life with rust-resistant coating
• Enhances brake pad bite and reduces noise through slotted and drilled design

Installation Notes and Tips

Ensure the rotor is compatible with your specific Mazda Miata model year before installation. Clean the hub surface thoroughly to prevent rotor runout. Torque the four bolts to manufacturer specifications using the 100 mm bolt circle pattern. Because this rotor is directional, verify the correct orientation during installation to maintain optimal braking performance. Avoid contaminating the rotor surface with grease or oil.

Quality Assurance

Dynamite Friction manufactures the 631-80037L rotor to meet industry standards for durability and performance. The rust-resistant zinc silver hat finish helps protect against corrosion, contributing to longer rotor life. While no specific warranty information is provided, this rotor is designed to maintain structural integrity and consistent braking under normal operating conditions.