Kawasaki ER-6f (2007) vs Yamaha XVS 950 V-Star (2009-10) vs Kawasaki ZX-9R Ninja (2003)
Comparison technical specifications
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| Make: | Kawasaki | Yamaha | Kawasaki |
| Model: | ER-6f | XVS 950 V-Star | ZX-9R Ninja |
| Years: | 2007 | 2009-10 | 2003 |
| Engine: | Four stroke, parallel twin, DOHC, 4 valves per cylinder. | Four stroke, 60°V-cylinder, SOHC, 4 valve per cylinder | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. |
| Capacity: | 649 cc / 39.6 cu-in | 942 cc / 57.4 cu-in | 899 cc / 54.8 cu-in |
| Bore x Stroke: | 83 X 60mm | 85 x 83mm | 75 x 50.9 mm |
| Cooling System: | Liquid cooled, | Air cooled | Liquid cooled |
| Compression Ratio: | 11.3;1 | 9.0:1 | 12.2:1 |
| Induction: | 2x 38mm Electronic Fuel Injection Keihin | 35mm dual bore throttle body fuel injection | 4X 40mm Keihin CVRD40 carburetors |
| Ignition: | Digital TCBI | Digital TCI | Digital with Kawasaki Throttle Responsive Ignition Control (K-TRIC) |
| Starting: | Electric | Electric | Electric |
| Max Power: | 53 kW / 72.1 hp @ 8500 rpm | 52.4 hp / 38.6 kW @ 6000 rpm | 144 hp / 105 kW @ 11000 rpm |
| Max Torque: | 66 Nm / 6.7 m-kg @ 7000 rpm | 7.8 kgf-m / 56.7 ft-lb @ 3000rpm | 101 Nm / 74.4 lb-ft @ 9000 rpm |
| Transmission: | 6 Speed | 5 Speed | 6 Speed |
| Final Drive: | Chain | Belt | Chain |
| Frame: | Diamond, high-tensile steel | Steel double-cradle | Aluminum twin-spar |
| Front Suspension: | 41 mm telescopic fork, | 41mm forks | 46mm RWU forks, preload, compression and rebound adjustable. |
| Rear Suspension: | Offset laydown single-shock with adjustable preload, | Adjustable link Monocross | Uni-Trak piggy-back monoshock, reload, compression and rebound damping adjustable. |
| Front Brakes: | 2x 300mm discs 2 piston calipers | Single 320mm disc | 2x 310mm discs 6 piston calipers |
| Rear Brakes: | Single 220mm disc 1 piston caliper | Single 298mm disc | Single 220mm disc 1 piston caliper |
| Front Tyre: | 120/70ZR17 | 130/70-18 | 120/70 ZR17 |
| Rear Tyre: | 160/60ZR17 | 170/70-16 | 190/50 ZR17 |
| Seat Height: | 790 mm / 31.1 in | 675mm / 26.6 in | 827 mm / 32.5 in |
| Fuel Capacity: | 15.5 Litres / 4.1 US gal | 17 Liters / 4.4 US gal | 18 Litres / 4.7 US gal |