Kawasaki GPz 1100-B1 / Z 1100GP (1981) vs Kawasaki GT 550 (1982-) vs Kawasaki GPz 550 / Z 550GP (1981-82) vs Kawasaki GPz 400F / Z400GP (1984)
Comparison technical specifications
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| Make: | Kawasaki | Kawasaki | Kawasaki | Kawasaki |
| Model: | GPz 1100-B1 / Z 1100GP | GT 550 | GPz 550 / Z 550GP | GPz 400F / Z400GP |
| Years: | 1981 | 1982- | 1981-82 | 1984 |
| Engine: | Four stroke, transverse four cylinder, DOHC, 2 valve per cylinder. | Four stroke, transverse four cylinder, DOHC, 2 Valves per cylinder. | Four stroke, transverse four cylinder, DOHC, 2 valve per cylinder. | Four stroke, transverse four cylinder, DOHC, 2 Valve per cylinder. |
| Capacity: | 1089 cc / 66.4 cu-in | 553 cc / 33.7 cu-in | 553 cc / 33.7 cu-in | 399 cc / 24.3 cu-in |
| Bore x Stroke: | 72.5 x 66 mm | 58 x 52.4 mm | 58 x 52.4 mm | 52 х 47mm |
| Cooling System: | Air cooled | Air cooled | Air cooled | Air cooled |
| Compression Ratio: | 8.9:1 | 9.5:1 | 10.0:1 | 9.5:1 |
| Induction: | Bosch electronic fuel injection | 4x TK K26V mm carburetors | 4x 22mm Teikei constant vacuum - main jets #94 | 4 x 21mm Teir-Kei carburetors |
| Ignition: | Electronic, CDI | CDI | CDI | CDI |
| Starting: | Electric | Electric | Electric | Electric |
| Max Power: | 108 hp / 81 kW @ 8000 rpm | 58 hp / 43.2 kW @ 9000 rpm | 58 hp / 42.3 Nm @ 9000 rpm | 51 hp / 38 kW @ 11500 rpm |
| Max Torque: | 95.1 Nm / 70.2 lb-ft @ 7000 rpm | 35.5 lb-ft / 48.1 Nm @ 8000 rpm | 34.3 Nm / 25.2 lb-ft @ 8500 rpm | |
| Transmission: | 5 Speed | 6 Speed | 6 Speed | 6 Speed |
| Final Drive: | Chain | Shaft | #530 O-ring chain | Chain |
| Front Suspension: | Telescopic coil/air spring forks | Telescopic forks | Telescopic forks | Telescopic forks |
| Rear Suspension: | Swinging arm with 2 dampers adjustable for preload and damping | Swinging arm | Dual shocks, Swinging arm | Swing arm |
| Front Brakes: | 2x 270mm discs 1 piston calipers | 2x Disc | 2X 260mm disc | Single 236mm disc |
| Rear Brakes: | Single 270mm disc 1 piston caliper | Drum | Single 260mm disc | Single 140mm drum |
| Front Tyre: | 3.25-18 | 100/90-19 | 3.25 H19 | 90/90-19 |
| Rear Tyre: | 4.25-18 | 120/90-18 | 3.75 H18 | 110/90-18 |
| Fuel Capacity: | 21.4 Litres / 5.5 US gal | 22 Litres / 5.8 US gal | 15 Litres / 3.9 US gal | 15 Litres / 3.9 US gal |