Elka Stage 3 ATV Shocks. The Stage 3 model is derived directly from our top-end Stage 5 model, with which it shares most of the same components. It features a single external compression adjustment knob that controls the low-speed compression damping that is combined with an internal high-speed blow-off circuit which relieves peak pressure upon impacts to achieve race-level performance in a package that is more accessible and easier to adjust.