A seat that is direct bolt-on for all Sportsters with all tank sizes. Apart from any practical installation advantage it is an upgrade in style & general appearance for any Sportster model. Minimum dimensions bring out the wolf; still seating comfort is better than you might expect. Just large enough for genuine comfort. The quality materials; such as the marine grade fiberglass base; controlled polyurethane foam and a nice RSD metal badge don''t hurt either. What''s holding you back?