The ultimate shock for RZR XP900 50" trail. Exits 2" bore is large enough to handle the demands of any type of terrain or riding style. The X1 shock is compression adjustable with the simple turn of a knob. Leave the tools in your tool bag all you need is your hands to get these shocks adjusted to your style. Threaded spring preload ring is also easy to access and adjust for your specific ride height requirements. Each set of exit UTV shocks is custom built to each customer and comes with a 60 day ride quality. All exit shocks are custom-built, valved, and tuned to the application, additional weight, and preferred riding terrain.