SKI-DOO ADJUSTABLE RISER SNOWMOBILE - 860201549Instantly modify your handlebar height to adapt to changing riding conditions. Utilize the lower position for trail sit down riding: extend to maximum height in seconds for stand up riding. No tools required to make the adjustment, just flip the lever. Adjustable length: 6. 1" to 8. 3" (150 mm to 210 mm) high. Patent pending US20150360713A1.