Rox height adjustable snowmobile risers allow you to adjust your handlebar height easily on the trail, or in the back country. Increase your comfort by customizing your sled and it s feel to you. Embrace the ever changing conditions. Increase your comfort and reduce back strain with these height adjustable handlebar risers. Wrenchless Levers for Rox Height Adjustable Risers are designed for quick easy adjustment on the trail without the need for tools or removing your gloves.