Pro-utv stage 2 -perfect for the weekend warrior designed for 2 or 4 seat vehicles, this system delivers the confidence and control you need to keep the hammer down and lead the pack. An adjustable lockout collar is included to allow fine tuning of the Transition point of the dual spring setup-for a smooth ride over rough terrain and the higher additional rate to prevent bottoming in the g-outs. You will immediately notice better turn-in response and stay hooked-up to power out of the turns.