The billet Internal Bar-End Adapter Kit offers an alternative to the basic Hindsight Bar-End Mirror mount. Bar-end mirrors traditionally mount into the end bore of hollow handlebars. The Internal Bar-End adapter assembly allows for mounting the Hindsight Mirror in this traditional mounting fashion if for some reason you can't slide your grips inward to accommodate directly mounting the mirror to the bar.
The 1" Adapter Kit assembly will work on bars with internal diameters as small as 18.3mm (.720") and as large as 22.25mm (.876").
The 1" Adapter Kit works on ALL of the various CRG mirrors including; BS, HS, LS, Arrow.