The SR Suntour LO Suspension Turning Upper Cap is a spare part designed specifically for the SF15/17 Aion LO-R Silver Forks. This upper cap is responsible for controlling the suspension lockout feature, allowing riders to effortlessly switch between locked and open suspension modes. Constructed with high-quality materials, this upper cap ensures durability and longevity, even in rugged and demanding terrains. It is designed to seamlessly fit into the Aion LO-R fork, providing the perfect solution for riders who require a replacement upper cap.The silver finish adds a sleek and visually appealing touch to the fork, elevating the overall aesthetics of your bike. With the SR Suntour LO Suspension Turning Upper Cap, you can ensure optimal performance and functionality of your fork, allowing for a smoother and more controlled riding experience.