Kawasaki Ninja 125 (2019) vs Yamaha XV 1900 Roadliner S (2012-13) vs Yamaha XVZ 1300 Royal Star Venture S (2012-13) vs Norton Dominator 99 SS (1956-62)
Comparison technical specifications
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| Make: | Kawasaki | Yamaha | Yamaha | Norton |
| Model: | Ninja 125 | XV 1900 Roadliner S | XVZ 1300 Royal Star Venture S | Dominator 99 SS |
| Years: | 2019 | 2012-13 | 2012-13 | 1956-62 |
| Engine: | Four stroke, single cylinder, DOCH, 4 valve | Four stroke, pushrod 48° V-Twin, OHV, 2 valves per cylinder | Four stroke, 70°V-four cylinder, DOHC, 4 valve per cylinder | Four stroke, parallel twin cylinder, OHV |
| Capacity: | 125 cc / 7.6 cu in | 1854 cc / 113 cu-in | 1294 cc / 78.9 cu-in | 596 cc / 36.4 cu in |
| Compression Ratio: | 11.7:1 | 9.5:1 | 10.0:1 | 7.4:1 |
| Cooling System: | Air cooled | Air cooled | Liquid cooled | Air cooled |
| Induction: | Fuel injection (ø28 x 1) | Twin-bore electronic fuel injection, 43mm throttle bodies and throttle position sensor | 4x 32mm Mikuni Constant-Velocity | Amal 376 carburetor |
| Ignition: | B&C (TCBI, B. P&EL. ADV.) | Digital TCI | Digital TCI | Coil |
| Starting: | Electric | Electric | Electric | Kick |
| Transmission: | 6 Speed, return shift | 5 Speed | 5 Speed | 4-Speed |
| Final Drive: | Chain | Belt | Shaft | Chain |
| Front Suspension: | 37mm Telescopic Fork | 46mm telescopic forks, | Air assisted telescopic fork | Telescopic fork |
| Rear Suspension: | Uni Track Swingarm | Single shock, link-type, | Single shock, link-type w/air assist | Swingarm with twin plungers |