Dynamite Friction 4512-80101 Disc Brake Kit - Rear

Rear Brake Kit for Mazda MX-5 Miata and Fiat 124 Spider

The Dynamite Friction DFC GEOSPEC Coated Rotors with 5000 Advanced Brake Pads - Ceramic and Hardware, part number 4512-80101, is a rear disc brake kit built for specific Mazda MX-5 Miata and Fiat 124 Spider applications. It combines coated rotors, ceramic brake pads, and matching hardware in one service kit for a complete rear brake refresh.

Key Features

• Rear disc brake kit with rotors, pads, and hardware
• DFC GEOSPEC coated rotors with a silver-gray corrosion-resistant finish
• 5000 Advanced ceramic brake pads with post-cured friction material
• Scorched pads for reduced initial break-in time
• Premium rubber-steel-rubber shims for improved noise, vibration, and harshness control
• Non-directional rotor finish for more even pad bed-in and smoother stops
• OE-style rotor machining and inspection for fit and consistency

Product Details

Part number 4512-80101 is engineered for rear brake service on the 2024-2025 Mazda MX-5 Miata, 2021-2023 Mazda MX-5 Miata with Brembo front brakes, 2016-2020 Mazda MX-5 Miata, and 2017-2020 Fiat 124 Spider variants listed in the fitment data. The DFC GEOSPEC rotor coating is designed to resist rust better than conventional paint or zinc finishes, and the rotors are shipped dry and ready to install. The 5000 Advanced pads are formulated for stable friction performance, while the hardware kit uses PTFE coating, vulcanized rubber, and stainless steel for OE-style function.

This rear brake kit for Mazda MX-5 Miata and Fiat 124 Spider applications is a practical choice for drivers replacing worn rear rotors and pads while restoring consistent pedal feel and quiet operation. This part number 4512-80101 is also a fitment-specific option for rear brake service on select MX-5 Miata and 124 Spider models.

What It Helps Address

• Rear brake noise from worn pads or fatigued hardware
• Uneven rear pad wear caused by corroded or stressed hardware
• Reduced braking consistency from worn rotor surfaces
• Rust buildup on exposed rotor surfaces
• Longer brake service time from uncoated, oil-covered replacement rotors

Installation Notes and Tips

• Confirm rear axle fitment against the vehicle listing before ordering.
• Use the included hardware during brake service to restore proper caliper movement and spring tension.
• Clean the rotor friction surface only as needed before installation; the coating is removed by the pads during normal use.
• Follow proper bedding procedures after installation for even pad transfer and consistent stopping performance.

Quality Assurance

DFC GEOSPEC rotors are machined to tight tolerances, finished with a non-directional surface, and inspected for critical dimensions and balance. The rotors carry a 12-month warranty against defects in material and workmanship.