| MODEL | KAWASAKI GPZ 400R 1985 |
| Year | 1985 |
| Engine Type | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder |
| Displacement / Capacity | 399 cc / 24.3 cu in |
| Bore X Stroke | 57 x 39 mm |
| Compression Ratio | 11.5:1 |
| Cooling System | Liquid cooled |
| Max Power | 59 hp / 44 kW @ 12000 rpm |
| Max Torque | 3.6 kgf-m / 26.0 lb-ft @ 10500 rpm |
| Ignition | CDI |
| Induction | 4 x Keihin CVKD30 carburetors |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 6 Speed |
| Clutch | Wet multi disc |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Aluminum diamond tubular, double cradle |
| Front Suspension | 41mm telescopic forks |
| Rear Suspension | Rising rate monoshock |
| Front Brakes | 2 x 300mm discs, 4 piston calipers |
| Rear Brakes | Single 240mm disc, 1 piston caliper |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 770 mm / 30.3 in |
| Wheelbase | 1395 mm / 54.9 in |
| Ground Clearance | — |
| Dry Weight | 176 kg / 388 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 100/90-16 |
| Rear Tyre | 130/90-16 |
| FUEL SYSTEM | |
| Fuel Capacity | 16 Litres / 4.2 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The GPZ 400R, a liquid-cooled 399 cc transverse four with four valves per cylinder and 59 hp at 12,000 rpm, the most powerful of the 400s on this site. It had an aluminium double-cradle frame, 41 mm forks, a rising-rate monoshock and twin 300 mm front discs on 16-inch wheels. The page also lists it as the ZX 400.
