Billet Aluminum Handlebar Mount Cones (set of 4 for one bike). Replace your stock rubber handlebar mounts that twist on the slightest falls. Improve the handling (feel) of your bike. More precision steering feedback in corners. Installs in minutes by removing the bar mount bolts and replacing the rubber dampers with these billet pieces. Pictures show replacing the rubber mounts and where they go. You are purchasing the 4 billet aluminum mounts in the first picture.