You need three hands! Remove the end weight and screw, with a couple of small screwdrivers or needle nose pliers you need to squeeze together the internal clip which should be staring at you as you look at the end of your handle bar, screw in the end weight screw (you've removed) and use this as a puller, as you squeeze the clip together pull hard on the screw and out it should come. Try not to damage your weight screw. There is no need to remove your grips. Picture below of remove unit. Ho