Kawasaki Z125 Pro (2018) vs Yamaha YZF 750SP (1994) vs Suzuki GSX 400E - L (1981-83) vs Yamaha WR 250X (2010-11)
Comparison technical specifications
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| Make: | Kawasaki | Yamaha | Suzuki | Yamaha |
| Model: | Z125 Pro | YZF 750SP | GSX 400E - L | WR 250X |
| Years: | 2018 | 1994 | 1981-83 | 2010-11 |
| Engine: | Four stroke, single cylinder, SOHC, 2 valve. | Four stroke, transverse four cylinder, DOHC, 5 valves per cylinder. | Four stroke, parallel twin, DOHC, 4 valves per cylinder. | Four stroke, single cylinder, DOHC, 4 valve |
| Capacity: | 125 cc / 7.6 cu in | 749 cc / 45.7 cu-in | 398 cc / 24.3 cu in | 249 / 15.2 cub in. |
| Bore x Stroke: | 56.0 x 50.6mm | 72 x 46 mm | 67 x 56.6 mm | 77 x 53.6 mm |
| Compression Ratio: | 9.8:1 | 11.5:1 | 10.5:1 | 11.8:1 |
| Cooling System: | Air cooled | Liquid cooled | Air cooled | Liquid cooled |
| Induction: | DFI® with 24mm throttle body | 4x 4 Y Keihin FCRD39/4 | 2 x Mikuni BS34SS carburetors | Electronic fuel injection |
| Ignition: | TCBI with electronic advance | T.C.I. Digital | Transistorized | TCI |
| Starting: | Electric | Electric | Electric | Electric |
| Max Power: | NA | 125 hp / 91.1 kW @ 12000 rpm | 32.8 kW / 44 hp @ 9500 rpm | 22.6 kW / 30.3 hp @ 10 000 rpm |
| Max Torque: | NA | 80.4 Nm / 8.2 kgf-m / 59.3 lb-ft @ 9500 rpm | 36.3 Nm / 3.7 kgf-m 26.8 lb-ft @ 8000 rpm | 23.7 Nm 2.42 kgf-m / 17.5 lb-ft. @ 8 000 rpm |
| Transmission: | 4 Speed, return shift | 6 Speed | 6 speed constant mesh | 6 Speed |
| Final Drive: | Sealed chain | Chain | Chain | Chain |
| Front Suspension: | 30mm Inverted telescopic fork | 41mm UD fork, fully adjustable. | Air assisted telescopic forks | Inverted fork; fully adjustable, 269mm wheel travel |
| Rear Suspension: | Swingarm, single shock | Monocross type fully adjustable Öhlins remote reservoir shock, | Dual shocks, preload adjustable | Single shock; fully adjustable, 264mm wheel travel |
| Front Brakes: | Single 200mm petal-style disc | 2x 320mm discs 6 piston calipers | Single disc | Single 298mm disc |
| Rear Brakes: | Single 184mm petal-style disc | Single 245mm disc 2 piston caliper | Drum | Single 230mm disc |
| Front Tyre: | 100/90-12 | 120/70 ZR17 | 3.60S-18 4PR | 110/70-17 |
| Rear Tyre: | 120/70-12 | 180/55 ZR17 | 4.10S-18 4PR | 140/70-17 |