The Bilstein B6 2016+ BMW X1 Rear Monotube Shock Absorber is a high-performance suspension upgrade designed to provide improved handling and stability for BMW X1 vehicles. It features a monotube design that provides maximum damping response, as well as a self-adjusting deflective disc valve that helps to reduce body roll and improve overall ride comfort. The shock absorber also features a gas-pressurized construction that helps to reduce foaming and aeration for consistent performance. With its corrosion-resistant zinc finish, this shock absorber is designed for long-term durability and performance.