A couple of years after the presentation of the GSX-R750 the 250 cc GSX-R250 was released. Like the larger bike, the GSX-R250 had a box-frame (steel, not aluminum), full fairing, full-floater rear swing and a four-cylinder four-stroke engine. But while the GSX-R750 engine was air and oil-cooled, the baby brother had a liquid-cooled engine.