The RDA Rear Brake Disc Rotor is a direct-fit replacement for Hyundai Kona AWD models built from 2020 to 2022. The casting is fully machined, dynamically balanced and given a protective coating on the hat and edges to slow surface rust. Supplied with a light protective oil film; clean with brake cleaner before fitting. Vane geometry is matched to the original design so cooling airflow and thermal expansion behave as the factory intended. The Cast Iron 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 300mm with a new thickness of 30mm and a minimum machining thickness of 26mm. Sold new with 2 Years / 40,000 km warranty cover and full technical support.