DuraGo BR31159 Disc Brake Rotor - Front

Durable Cast Iron Disc Brake Rotor for Mazda Miata

The DuraGo BR31159 disc brake rotor is engineered for reliable braking performance on Mazda Miata models. Constructed from full cast iron, this vented rotor offers consistent heat dissipation and structural integrity for everyday driving conditions.

• Material: Full cast iron construction
• Vented rotor design for improved cooling
• Nominal thickness: 0.79 inches (20 mm)
• Discard thickness: 0.71 inches (18 mm)
• Outside diameter: 10.03 inches (254.7 mm)
• Mounting bolt hole quantity: 4 with 0.51 inch (13 mm) diameter
• Non-directional brake surface for versatile installation
• Conventional rotor type compatible with drum-in-hat setups

Product Details and Specifications

The DuraGo BR31159 disc brake rotor is designed specifically for Mazda Miata vehicles, ensuring proper fitment and performance. Its full cast iron construction provides durability and resistance to warping under normal operating temperatures. The vented design enhances heat dissipation, reducing the risk of brake fade during extended use. With a nominal thickness of 0.79 inches and a discard thickness of 0.71 inches, this rotor maintains optimal braking efficiency throughout its service life. The rotor features a 10.03-inch outside diameter and four mounting bolt holes with a 100 mm bolt circle diameter, matching the factory specifications for a secure fit. The non-directional brake surface allows for flexible installation without concern for rotor orientation.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Mazda Miata models
• Addresses brake pulsation caused by uneven rotor surfaces
• Improves braking consistency after rotor overheating
• Restores proper rotor thickness for safe braking performance
• Compatible with conventional drum-in-hat brake systems

Installation Notes and Tips

When installing the DuraGo BR31159 rotor, ensure the mounting surface is clean and free of debris to prevent uneven rotor seating. Verify that the rotor thickness is within the specified nominal and discard limits before installation. Since this rotor does not include an ABS tone ring, confirm compatibility with your vehicle’s ABS system if applicable. Use proper torque specifications on mounting bolts to avoid rotor distortion. It is recommended to replace brake pads simultaneously to maintain balanced braking performance.

Quality Assurance and Warranty

DuraGo brake rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The BR31159 rotor undergoes rigorous quality control to ensure consistent performance and durability. While specific warranty details may vary, DuraGo typically offers limited warranties covering defects in materials and workmanship. Refer to the product documentation for exact warranty terms.