The EVO gas shock is the perfect balance of traction and stability with unmatched tunability! We have developed piston and valving combinations for each class specifically, taking open wheel shock performance to another level of customization. You can order online or contact a certified service center for the latest valvings available. All shocks are made to order so expect 5-7 business days for orders to be processed. When selecting your valvings its important to note that all selected adjustable valvings will be set in the middle of the adjustment range, so the valving will be able to increase low speed dampening and decrease low speed dampening from what's selected.