The 429 Series shocks have been designed to improve handling and stability while cruising and when at full payload, Heavy-duty spring for riders operating UTV at or near the manufacturer's maximum load over 50% of the time, Features a steel monotube, Internal Floating Piston (IFP), High-pressure, nitrogen-charged dampers, Powdercoated coil spring, Stylish shock that cleans up easily, Easy to bolt on and easy to tune via threaded preload adjusters, Require no other mods and can be installed with basic tools