Motorcycle 55mm CNC Handlebar Riser Bar Clamp Mount fit For SX "Function: This Motorcycle Handlebar Riser Mount can help you keep a more comfortable riding posture, effectively alleviate the fatigue of long-distance riding. riser can raise the handlebar to provide a more upright riding posture " Just slide the stem extender onto the steerer tube and tighten it, very easy to fit. The handlebar height adapter is made of refined aluminum alloy, high toughness, no deformation, corrosion resistance, sturdy and durable.