Kawasaki GPz 900R Ninja / ZX900 Ninja (1986 - 88) vs Kawasaki Z 550GT (1983)
Comparison technical specifications
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| Make: | Kawasaki | Kawasaki |
| Model: | GPz 900R Ninja / ZX900 Ninja | Z 550GT |
| Years: | 1986 - 88 | 1983 |
| Engine: | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four stroke, transverse four cylinder, DOHC, 2 valve per cylinder. |
| Capacity: | 908 cc / 55.4 cu-in | 553 cc / 33.7 cu-in |
| Bore x Stroke: | 72.5 x 55 mm | 58 x 52.4 mm |
| Cooling System: | Liquid cooled | Air cooled |
| Compression Ratio: | 11.0:1 | 9.5:1 |
| Induction: | 4x 34mm Keihin CVK34 carburettors | 4x 22mm TK |
| Ignition: | Battery ignition, full electronic! | CDI |
| Starting: | Electric | Electric |
| Max Power: | 115 hp / 86 kW @ 9500 rpm | 58 hp / 43.2 kW @ 9000 rpm |
| Max Torque: | 8.7 kgf-m / 63 lb-ft @ 8500 rpm rpm | 35.5 ft-lb / 48.1 Nm @ 7000 rpm |
| Final Drive: | Chain | Chain |
| Front Suspension: | 39mm Telehydraulic forks air assisted. | Air assisted telescopic forks |
| Rear Suspension: | Rising rate link-system with single shock, adjustable preload by air pressure, 4-stage rebound-damping | Uni-Trak, adjustable spring preload damping |
| Front Brakes: | 2x 280mm discs 1 piston calipers | 2X 228mm discs |
| Rear Brakes: | Single 270mm disc 1 piston caliper | Drum |
| Front Tyre: | 120/80 V16 | 3.25 H19 |
| Rear Tyre: | 130/80 V18 | 4.00 H18 |