Progressive Suspension 425 Series Heavy Duty 16.25in. Shocks 425-1010 An affordable, ride enhancing, suspension performance upgrade for your UTV from ProgressiveTM Suspension. Dubbed the 425 Series Shock, it comes ready to bolt on and ride! Available in STD and HD packages, each custom designed and built to handle your riding preference and style Each damper is specifically tuned to match its accompanying spring combination. The damper has a threaded outer tube that provides easy spring preload adjustments with less components and weight Brilliant powder-coated red coil springs with a gloss black damper and a touch of chrome with a plated coilspring retainer make this not only a great riding shock, but a great looking one, as well!