Kawasaki ZX-R 750-H1 (1989) vs Kawasaki Z1 (1973) vs BMW R 1200GS (2004)
Comparison technical specifications
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| Make: | Kawasaki | Kawasaki | BMW |
| Model: | ZX-R 750-H1 | Z1 | R 1200GS |
| Years: | 1989 | 1973 | 2004 |
| Engine: | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four stroke, transverse four cylinder, DOHC, 2 valve per cylinder. | Four stroke, two cylinder horizontally opposed Boxer, 4 valves per cylinder |
| Capacity: | 749 cc / 45.7 cu-in | 903 cc / 55.1 cu-in | 1170 cc / 71.4 in. |
| Bore x Stroke: | 68 x 51.5 mm | 66 x 66 mm | 101 x 73 mm |
| Cooling System: | Liquid cooled | Air cooled | Air/oil cooled |
| Compression Ratio: | 10.8:1 | 8.5:1 | 11.0:1 |
| Induction: | 4x 36 mm Keihin CVKD (Constant Velocity) carburettors | 4 x 28mm Mikuni VM28SC | Electronic intake pipe injection/digital engine management: BMS-K with overrun fuel cut off, dual ignition |
| Ignition: | Digital | Battery and coil | BMS-K |
| Starting: | Electric | Electric & kick | Electric |
| Max Power: | 105.3 hp / 78.4 kW @ 10500rpm | 82 hp / 59.8 kW @ 8500 rpm | 72 kW / 98 hp @ 7000 rpm |
| Max Torque: | 6.76 Kg-m / 48.8 lb-ft @ 9000rpm | 73.5 Nm / 54.3 lb-ft @ 7000 rpm | 115 Nm / 11.7 kgf-m / 84.8 ft-lbs @ 5500 rpm |
| Clutch: | Multi plate wet (oil submerged) hydraulic | Wet, multi-plate | Single plate dry clutch, ∅180 mm, hydraulically operated |
| Transmission: | 6 Speed | 5 Speed | 6 Speed |
| Final Drive: | Chain | Chain | Shaft |
| Frame: | Aluminium perimeter | Double tubular steel cradle | Tubular space frame, engine load-bearing |
| Front Suspension: | 43mm Telescopic forks. adjustable preload and 12-way rebound damping, | 36mm Telescopic forks | Telelever, stanchion ∅41mm, central spring strut, spring preload 9 times mechanically adjustable. |
| Rear Suspension: | Uni Track monoshock. adjustable preload and 4-way rebound damping, 140mm wheel travel. | Dual shock, 5-way preload adjustment | Die-cast aluminium single-sided swinging arm with BMW Motorrad Paralever, WAD strut (travel-related damping), spring pre-load hydraulically adjustable to continuously variable levels by means of handwheel, rebound damping adjustable. |
| Front Brakes: | 2x 310mm discs 4 piston calipers | Single 296mm disc 2 piston caliper | 2 x ∅305mm discs, 4 piston caliper |
| Rear Brakes: | Single 230mm disc 2 piston caliper | 200mm drum | Single ∅265 mm disc, 2 piston caliper |
| Front Tyre: | 120/70 ZR17 | 3.25 H19 | 110/80 ZR19 |
| Rear Tyre: | 170/60 ZR17 | 4.00 S18 | 150/70 ZR17 |
| Wheelbase: | 1455 mm / 57.2 in | 1498.6 mm / 59.0 in | 1507 mm / 59.3 in |
| Dry Weight: | 205 kg / 451.9 lbs | 230 kg / 507 lbs | 199 kg / 439 lbs |
| Fuel Capacity: | 18 Litres / 4.7 US gal | 18 Litres / 4.7 gal | 20 Litres / 5.2 US gal |
| Consumption average: | 17.6 km/lit | 48 mpg | 5.5 L/100 km / 18.0 km/l / 42.4 US mpg |
| Standing ¼ Mile: | 11.40 sec / 120.5 mph | 12.61 sec / 105.63 mph | 12.3 sec / 181.5 km/h / 112.8 mph |
| Top Speed: | 245.5 km/h / 152.5 mph | 135 mph | 213 km/h / 132 mph |