Kawasaki KE 125 (1975-76) vs Kawasaki ZX-10 (1989) vs Kawasaki GPz 550 / Z 550GP (1982)
Comparison technical specifications
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| Make: | Kawasaki | Kawasaki | Kawasaki |
| Model: | KE 125 | ZX-10 | GPz 550 / Z 550GP |
| Years: | 1975-76 | 1989 | 1982 |
| Engine: | Two stroke, single cylinder, rotary valves | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four stroke, transverse four cylinder, DOHC, 2 valve per cylinder. |
| Capacity: | 124 cc / 7.6 cu-in | 997 cc / 60.8 cu-in | 553 cc / 33.7 cu-in |
| Bore x Stroke: | 56 х 50.6 mm | 74 x 58 mm | 58 x 52.4 mm |
| Cooling System: | Air cooled | Liquid cooled | Air cooled |
| Compression Ratio: | 7.0:1 | 11.0:1 | 10.0:1 |
| Induction: | Carburetor | 4x 36mm Keihin CV carburtors | 4x 22mm Teikei constant vacuum - main jets #94 |
| Ignition: | Membrane | Electronic | CDI |
| Starting: | Kick | Electric | Electric |
| Max Power: | 13 hp / 9.6 kW @ 7500 rpm | 137 hp / 99.9 kW @ 10000 rpm | 58 hp / 42.3 Nm @ 9000 rpm |
| Max Torque: | 1.5 kgf-m / 10.8 lb-ft @ 6000 rpm | 3.6 kgf-m / 103 Nm @ 9000 rpm | 35.5 lb-ft / 48.1 Nm @ 8000 rpm |
| Transmission: | 6 Speed | 6 Speed | 6 Speed |
| Final Drive: | Chain | Chain | #530 O-ring chain |
| Front Suspension: | Telescopic forks | 41mm Telescopic forks | Telescopic forks |
| Rear Suspension: | Dual shocks | Uni-trek monoshock,. air assisted 4-way rebound damping adjustment | Dual shocks, Swinging arm |
| Front Brakes: | Drum | 2x 300mm discs 2 piston calipers | 2X 260mm disc |
| Rear Brakes: | Drum | Single 250mm disc 2 piston caliper | Single 260mm disc |
| Front Tyre: | 2.75-21 | 120/70-17 | 3.25 H19 |
| Rear Tyre: | 3.50-18 | 160/60-18 | 3.75 H18 |
| Fuel Capacity: | 9.5 Litres / 2.5 US gal | 22 Litres / 5.8 US gal | 15 Litres / 3.9 US gal |