Dead Ends are the most effective way to get rid of the vibrations felt through your handlebars. They are for the stock KTM and Husqvarna handlebars only. They will not work with flexxbars and some other twin wall bars. They are filled with lead shot so they reduce vibes over a Large range of RPM's. They require a 5/8-11 tap to install and stick out 3/4" from the end of your bar. These stick out on the OUTSIDE of your handlebars and add 3/4" to each side.