Emgo classic chrome plated bar end mirror, mounts with expanding metal wedge. Fits inside most 22mm or 7/8" handlebars.  Sometimes these are better than the expanding rubber plug type because you can beat them into "not-perfectly-round" handlebars with a hammer.

Emgo classic chrome plated bar end mirror, mounts with expanding metal wedge. Fits inside most 22mm or 7/8" handlebars.  Sometimes these are better than the expanding rubber plug type because you can beat them into "not-perfectly-round" handlebars with a hammer.