Xray NT1 Racing shock springs
New from Xray, and the result of extensive testing and racing experience, are these optional racing shock springs for the NT1 200mm. Designed and precision-crafted to have a unique spring characteristic, these new spring sets give you an optimum range of choices to fine tune your car. Each set of front springs (shorter) is individually measured, controlled, inspected and matched to provide equal damping characteristics.
Source: Xray [teamxray.com]