The LTD Mirrycle mirror base is design specifically for the Bontrager Isozone handlebars. It comes complete with a unique die cast end plug for secure mounting in the end of these handlebars. In all other features, the LTD is the same as the Mountain Mirrycle. It includes both sizes of Allen wrenches you will need to easily install it. The 3″ convex round glass mirror with its wide field of view is adjustable to any viewing angle.