RDA Front Brake Disc Rotor to suit Mazda CX-5 models built from 2021 to 2023, supplied ready to fit with no modification required. Vane geometry is matched to the original design so cooling airflow and thermal expansion behave as the factory intended. Supplied with a light protective oil film; clean with brake cleaner before fitting. The Steel casting is high-carbon enriched for better damping and quieter braking. Runout is held under 0.05mm at the mounting face, which prevents the pedal pulsation that follows a poorly machined rotor. Outside diameter is 319mm with a new thickness of 30mm and a minimum machining thickness of 30mm. The casting is fully machined, dynamically balanced and given a protective coating on the hat and edges to slow surface rust. Every unit is supplied new with a 12 Months warranty against manufacturing defect.