| MODEL | KAWASAKI ZX 900 NINJA 1984 - 1985 |
| Year | 1984 - 1985 |
| Engine Type | Four-stroke, transverse four-cylinder, DOHC, 4 valves per cylinder |
| Displacement / Capacity | 908 cc / 55.4 cu in |
| Bore X Stroke | 72.5 x 55 mm |
| Compression Ratio | 11.0:1 |
| Cooling System | Liquid |
| Max Power | 115 hp / 86 kW @ 9,500 rpm |
| Max Torque | 8.7 kgf-m / 63 lb-ft @ 8,500 rpm |
| Ignition | Battery, fully electronic |
| Induction | 4x 34 mm Keihin CVK34 carburettors |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Two-loop system with oil cooler (per article text) |
| Gear Box | 6-speed |
| Clutch | Hydraulic (per article text) |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Iron double cradle |
| Front Suspension | 39 mm telehydraulic air-assisted forks, 140 mm (5.5 in) wheel travel |
| Rear Suspension | Rising-rate link with single shock, air-adjustable preload, 4-stage rebound damping, 115 mm (4.5 in) wheel travel |
| Front Brakes | 2x 280 mm discs, 1-piston calipers |
| Rear Brakes | Single 270 mm disc, 1-piston caliper |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 760 mm / 29.9 in |
| Wheelbase | 1,425 mm / 56.1 in |
| Ground Clearance | — |
| Dry Weight | 228 kg / 502 lb |
| Wet Weight | 257.0 kg / 566.6 lb |
| WHEEL SPECS | |
| Front Tyre | 120/80 V16 |
| Rear Tyre | 130/80 V18 |
| FUEL SYSTEM | |
| Fuel Capacity | 22 L / 5.8 US gal |
| Fuel Consumption | 40.8 mpg (average) |
| Top Speed | 247.8 km/h / 154 mph |
The 1984-85 ZX 900 Ninja, sold as the GPz 900R in its home market, was Kawasaki's 908 cc liquid-cooled four with a 16-inch front wheel and air-assisted telehydraulic forks. The page presents it as a fast, long-legged sports tourer-style machine with a rising-rate rear suspension. It is the first generation of the 900 Ninja line.
