[[file: Gpz400r mod1.jpg | 500px 600px | center | Kawasaki GPZ400R (1985-1988)]]The ''' Kawasaki GPZ 400R ''' sports bike model appeared in 1985 as a domestic Japanese version of the [[Kawasaki_GPZ600 | Kawasaki GPZ 600R (Ninja 600R)]]. Unlike the export prototype, the GPZ400R received an aluminum frame from the outset, called the Al-X Cross Frame. The export version was equipped with this frame only in the modification [[Kawasaki_GPZ600 | Kawasaki Ninja 600RX]], offered only in 1987 for the American market.

{| align <gallery mode= "centerpacked" border heights= "0"200px>| [[ImageFile: 1985 gpz400r 02.jpg | 300px | thumb | Kawasaki GPZ400R (1985-1988)]]| [[ImageFile: Gpz-400r 1985 1.jpg | 300px | thumb | Kawasaki GPZ400R (1985-1988)]]| [[ImageFile: Maingpz400r.jpg | 300px | thumb | Kawasaki GPZ400R (1985-1988)]]|-|}</gallery>