Kawasaki ZX-9R Ninja (2002) vs Yamaha YZF-R 125 (2017) vs Yamaha X-Max 400 (2017)
Comparison technical specifications
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| Make: | Kawasaki | Yamaha | Yamaha |
| Model: | ZX-9R Ninja | YZF-R 125 | X-Max 400 |
| Years: | 2002 | 2017 | 2017 |
| Engine: | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four stroke, single cylinder, SOHC, 4 valve | Four stroke, single cylinder, DOHC, 4 valve |
| Capacity: | 899 cc / 54.8 cu-in | 124.7 cc / 7.6 cu-in | 292 cc / 17.8 cu-in |
| Bore x Stroke: | 75 x 50.9 mm | 52 x 58.6 mm | 70 x 75.9 mm |
| Cooling System: | Liquid cooled | Liquid cooled | Liquid cooled |
| Compression Ratio: | 12.2:1 | 11.2:1 | 10.9:1 |
| Induction: | 4X 40mm Keihin CVRD40 carburetors | Fuel Injection | Fuel Injection |
| Ignition: | Digital with Kawasaki Throttle Responsive Ignition Control (K-TRIC) | TCI | TCI |
| Starting: | Electric | Electric | Electric |
| Max Power: | 144 hp / 105 kW @ 11000 rpm | 11 kW / 15 hp @ 9000 rpm | 27.6 hp / 20.2 @ 7250 rpm |
| Max Torque: | 101 Nm / 74.4 lb-ft @ 9000 rpm | 12.4 Nm / 1.25 kg-m @ 8000 rpm | 29 Nm / 21.4 lb-ft @ 5750 rpm |
| Transmission: | 6 Speed | 6 Speed | Automatic |
| Final Drive: | Chain | Chain | V-Belt Automatic |
| Front Suspension: | 46mm RWU forks, preload, compression and rebound adjustable. | Upside-down telescopic fork, Ø 41 mm | Telescopic fork |
| Rear Suspension: | Uni-Trak piggy-back monoshock, reload, compression and rebound damping adjustable. | Linked monoshock with spring preload adjustment | Unit swing |
| Front Brakes: | 2x 310mm discs 6 piston calipers | Single 292mm disc | Single 267mm disc |
| Rear Brakes: | Single 220mm disc 1 piston caliper | Single 230mm disc | Single 267mm disc |
| Front Tyre: | 120/70 ZR17 | 110/80 -17 | 120/70-15 |
| Rear Tyre: | 190/50 ZR17 | 130/70 -17 | 140/70-14 |
| Seat Height: | 827 mm / 32.5 in | 825 mm / 32.4 in | 775 mm / 30.5 in |
| Fuel Capacity: | 18 Litres / 4.7 US gal | 11.5 Litres / 3.0 US gal | 13 Litres / 3.4 US gal |