2Pcs Motorbike Handlebar Stem Riser Parts Extender Block fit for R1200RT R1100RT R1150RT "Combined with the handlebar, provides a natural and riding position. Easy Installation: The motorcycle handlebar riser is designed to be easily installed without the " 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.