The Bilstein B8 2016+ BMW X1 Rear Monotube Shock Absorber is a high-performance shock absorber designed to provide superior handling and control in any driving condition. It features a monotube design that allows for greater oil capacity and cooling, helping to reduce fade and extend the life of the shock. The shock is designed with a digressive valving system that helps to provide a comfortable and controlled ride, even in the most demanding conditions. The shock also features a corrosion-resistant zinc finish for added durability.