The 5125 Series offers Bilstein technology for custom lifted applications. 5125 Series shocks feature Bilstein's superior single tube high gas pressure design for the utmost in consistent fade-free performance and long life. Each 5125 features the following; monotube gas pressure construction, self-adjusting deflecting disc valving, high-flow pistons, independent rebound and compression tuning, superior control with larger diameter tires, and available in a variety of lengths for custom applications.