Kawasaki ZX-R 750-H1 (1989) vs Kawasaki Z1 (1973)
Comparison technical specifications
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| Make: | Kawasaki | Kawasaki |
| Model: | ZX-R 750-H1 | Z1 |
| Years: | 1989 | 1973 |
| Engine: | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four stroke, transverse four cylinder, DOHC, 2 valve per cylinder. |
| Capacity: | 749 cc / 45.7 cu-in | 903 cc / 55.1 cu-in |
| Bore x Stroke: | 68 x 51.5 mm | 66 x 66 mm |
| Cooling System: | Liquid cooled | Air cooled |
| Compression Ratio: | 10.8:1 | 8.5:1 |
| Lubrication: | Wet sump | Wet sump, trachoid pump |
| Induction: | 4x 36 mm Keihin CVKD (Constant Velocity) carburettors | 4 x 28mm Mikuni VM28SC |
| Ignition: | Digital | Battery and coil |
| Starting: | Electric | Electric & kick |
| Max Power: | 105.3 hp / 78.4 kW @ 10500rpm | 82 hp / 59.8 kW @ 8500 rpm |
| Max Torque: | 6.76 Kg-m / 48.8 lb-ft @ 9000rpm | 73.5 Nm / 54.3 lb-ft @ 7000 rpm |
| Clutch: | Multi plate wet (oil submerged) hydraulic | Wet, multi-plate |
| Transmission: | 6 Speed | 5 Speed |
| Final Drive: | Chain | Chain |
| Frame: | Aluminium perimeter | Double tubular steel cradle |
| Front Suspension: | 43mm Telescopic forks. adjustable preload and 12-way rebound damping, | 36mm Telescopic forks |
| Rear Suspension: | Uni Track monoshock. adjustable preload and 4-way rebound damping, 140mm wheel travel. | Dual shock, 5-way preload adjustment |
| Front Brakes: | 2x 310mm discs 4 piston calipers | Single 296mm disc 2 piston caliper |
| Rear Brakes: | Single 230mm disc 2 piston caliper | 200mm drum |
| Front Tyre: | 120/70 ZR17 | 3.25 H19 |
| Rear Tyre: | 170/60 ZR17 | 4.00 S18 |
| Rake: | 24.5° | 27º |
| Trail: | 100 mm / 4.04 in | 3.75 in. |
| Wheelbase: | 1455 mm / 57.2 in | 1498.6 mm / 59.0 in |
| Dry Weight: | 205 kg / 451.9 lbs | 230 kg / 507 lbs |
| Fuel Capacity: | 18 Litres / 4.7 US gal | 18 Litres / 4.7 gal |
| Consumption average: | 17.6 km/lit | 48 mpg |
| Standing ¼ Mile: | 11.40 sec / 120.5 mph | 12.61 sec / 105.63 mph |
| Top Speed: | 245.5 km/h / 152.5 mph | 135 mph |