4000 Series HD Solid Brake Rotor

The DBA 4000 Series HD brake rotor represents a significant upgrade over OE direct replacement rotors, offering enhanced reliability, safety, and performance. These heavy-duty rotors are constructed from XG-150 cast iron alloy and undergo a TSP (Thermal Stability Profiling) heat treatment process. This process aligns the material's grain structure for improved uniformity and greater resistance to warping from excessive heat. DBA's 4000 Series rotors are designed to withstand higher levels of heat for extended service life, making them suitable for performance street cars, heavily laden vehicles, and towing applications. Each rotor features Thermographic Heat Paint Markings, which change color to indicate peak braking temperatures, providing valuable diagnostic information in extreme conditions. With dimensions including a 280mm outer diameter, 35.6mm height, and 9.5mm thickness, this solid brake disc is engineered for demanding use. The rotor is compatible with specific Mazda MX-5 models from 2017-2023, noting fitment variations that may include Brembo or non-Brembo brake systems.