To install it, the handle of the handlebars must be removed because no matter how much you loosen the screw on the lever, it doesn't open enough to be placed on the handlebars without removing the handle. So, the handle must be removed, the screw on the lever must be loosened, and the lever must be inserted from the end of the handlebars in a sliding manner. This is not very convenient because in some cases the handle does not go back in, or it is loose, or it was stuck and has been damaged during removal