Kawasaki ZX-9R Ninja (2003) vs Aprilia Tuono V4 1100 (2021) vs Kawasaki KH400 (1975)
Comparison technical specifications
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| Make: | Kawasaki | Aprilia | Kawasaki |
| Model: | ZX-9R Ninja | Tuono V4 1100 | KH400 |
| Years: | 2003 | 2021 | 1975 |
| Engine: | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four stroke, longitudinal 65° V4 cylinder, DOHC, 4 valves per cylinder | Two stroke, transverse three cylinder, piston valve |
| Capacity: | 899 cc / 54.8 cu-in | 1077 cc / 65.7 cu in | 400.4 cc / 24.4 cu-in |
| Bore x Stroke: | 75 x 50.9 mm | 81 x 52.3 mm | 57 х 52.З mm |
| Cooling System: | Liquid cooled | Liquid cooled | Air cooled |
| Induction: | 4X 40mm Keihin CVRD40 carburetors | Airbox with front dynamic air intakes. 4 Marelli 48-mm throttle bodies with 8 injectors and Ride-by-Wire engine management. | 3x Mikuni VM26SC, Ø 26 mm carburetors |
| Ignition: | Digital with Kawasaki Throttle Responsive Ignition Control (K-TRIC) | Magneti Marelli digital electronic ignition system integrated in engine control system, with one spark plug per cylinder and "stick-coil"-type coils | Battery and coil |
| Starting: | Electric | Electric | Kick |
| Max Power: | 144 hp / 105 kW @ 11000 rpm | 129 kW / 175 hp @ 11350 rpm | 38 hp / 28.3 kW @ 7000 rpm |
| Max Torque: | 101 Nm / 74.4 lb-ft @ 9000 rpm | 121 Nm / 12.2 kgf-m / 88.5 lb-ft @ 9000 rpm | 3.9 kgf-m / 28.2 lb-ft @ 6500 rpm |
| Transmission: | 6 Speed | 6 Speed gearbox with Aprilia Quick Shift (AQS) | 5 Speed |
| Final Drive: | Chain | Chain: 40/15 | Chain |
| Frame: | Aluminum twin-spar | Aluminium dual beam chassis with pressed and cast sheet elements. Adjustment for headstock position and rake, engine height, swingarm pin height. | Double tubular steel cradle |
| Front Suspension: | 46mm RWU forks, preload, compression and rebound adjustable. | 43mm Sachs front fork, fully adjustable | Telescopic Hydraulic forks |
| Rear Suspension: | Uni-Trak piggy-back monoshock, reload, compression and rebound damping adjustable. | Sachs fully adjustable single shock absorber | Dual shocks, Swing arm |
| Front Brakes: | 2x 310mm discs 6 piston calipers | 2x 330 mm, Brembo M50 monobloc radial caliper with 4 pistons. Radial brake pump with metal braided hose | Single 250mm disc |
| Rear Brakes: | Single 220mm disc 1 piston caliper | Single 220 mm disc, Brembo floating 2 piston calliper. Pump with integrated tank and metal braided hose | 180mm Drum |
| Front Tyre: | 120/70 ZR17 | 120/70 ZR 17 Radial tubeless | 3.25-18 |
| Rear Tyre: | 190/50 ZR17 | 190/55 ZR 17 (alternative 190/50 ZR 17) Radial tubeless | 3.50-18 |
| Fuel Capacity: | 18 Litres / 4.7 US gal | 17.9 Litres / 4.7 US gal | 16 Litres / 4.2 US gal |