Dynamic Friction 631-80073R Disc Brake Rotor - Front Right

Overview

The Dynamic Friction 631-80073R is a vented disc brake rotor with a slotted and drilled surface, built for direct fitment on select performance brake applications. Its zinc silver hat finish and rust-resistant coating add corrosion protection, while the directional braking surface supports consistent pad contact.

Compatible With Mazda MX-5 Miata and Fiat 124 Spider applications that use the specified Brembo front brake setup, this rotor is engineered around the listed dimensions and bolt pattern for accurate replacement fitment.

Key Features

• Slotted and drilled braking surface for improved pad bite and heat management.
• Vented rotor construction for better airflow through the disc.
• Zinc silver hat finish with rust-resistant coating for added corrosion protection.
• Directional brake surface for application-specific rotation.
• 4-lug pattern with 100 mm bolt circle and 55 mm center hole.

Detailed Description

This Dynamic Friction brake rotor, part number 631-80073R, is a front right replacement for select Mazda MX-5 Miata and Fiat 124 Spider models equipped with Brembo front brakes. The rotor measures 280 mm in outside diameter, with a 22 mm nominal thickness and 20 mm discard thickness, and uses a vented design with a directional slotted and drilled surface.

The plain disc finish is paired with a zinc silver hat finish and rust-resistant coating to help resist surface corrosion in service. Fitment is listed for 2016-2025 Mazda MX-5 Miata with Brembo front brakes, 2026 Mazda MX-5 Miata with Brembo front brakes and red calipers, and 2017-2020 Fiat 124 Spider with Abarth Brembo performance brakes. This part number, 631-80073R, is a direct replacement for the specified brake package.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Is Used For

• Replacing a worn or heat-checked brake rotor.
• Restoring proper braking surface contact after scoring or uneven wear.
• Addressing vibration or pulsation caused by rotor condition.
• Maintaining correct fitment on Brembo-equipped brake packages.
• Supporting consistent braking performance on the listed applications.

Installation Notes and Tips

Verify rotor dimensions, bolt pattern, center hole diameter, and brake package before installation. This rotor is listed for front right applications only, so confirm position and brake hardware configuration against the vehicle build. Part number 631-80073R should be matched to the exact fitment notes shown for the vehicle.

Quality Assurance

Dynamic Friction supplies brake components for OE-style replacement applications, and this rotor is built to the listed dimensional and finish specifications for the confirmed fitment range.