22mm-28mm Motorcycle Handlebar Risers Motorcycle Handlebar Mount Clamp Risers Handlebar Heightened "Function: The handlebar lifting kit can easily increase the handlebar height of motorcycles or can easily change the position of the handlebar, lift it up and pull it farther." Motorbike Handlebar Risers is A safe and reliable way to fit a narrower bar to a wider stem. Simply place one shim each side of clamp area on handlebar and insert into stem, tighten as normal.