Yamaha FZ-1 Fazer (2007) vs Kawasaki ER-6f (2016) vs Yamaha XV 250 Virago (1997-99) vs Yamaha XS 250 (1977-81)
Comparison technical specifications
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| Make: | Yamaha | Kawasaki | Yamaha | Yamaha |
| Model: | FZ-1 Fazer | ER-6f | XV 250 Virago | XS 250 |
| Years: | 2007 | 2016 | 1997-99 | 1977-81 |
| Engine: | Four stroke, transverse four cylinder, DOHC, 5 valve per cylinder | Four stroke, parallel twin, DOHC, 4 valves per cylinder. | Four stroke, V-Twin cylinder, SOHC, 2 valve per cylinder | Four stroke, 180° parallel twin, SOHC, 2 valves per cylinder |
| Capacity: | 998 cc / 60.9 ci-in | 649 cc / 39.6 cu-in | 249 cc / 15.2 cu-in | 248 cc / 15.2 cu-in |
| Bore x Stroke: | 77 X 53.6 mm | 83 X 60mm | 49 x 66 mm | 55 х 52.4 mm |
| Cooling System: | Liquid cooled | Liquid cooled, | Air cooled | Air cooled |
| Compression Ratio: | 11.5:1 | 11.3;1 | 10.0:1 | 9.6:1 |
| Induction: | Fuel injection | 2x 38mm Electronic Fuel Injection Keihin | BDS26 Mikuni carburetor | 2x 32mm Mikuni carburators |
| Ignition: | Digital TCI: Transistor Controlled Ignition with 32-bit ECU | Digital TCBI | CDI | Coil and cb |
| Starting: | Electric | Electric | Electric | Kick |
| Max Power: | 146.8 hp / 108 kW @ 11000 rpm | 53 kW / 72.1 hp @ 8500 rpm | 23 hp / 17.1 Kw @ 8000 rpm | 27 hp / 20.1 kW @ 9500 rpm |
| Max Torque: | 106 Nm /10.5 kgf-m / 76.7 ft-lb @ 8000 rpm | 66 Nm / 6.7 m-kg @ 7000 rpm | 2.2 kgf-m / 15.9 lb-ft @ 6000 rpm | 2.2 kgf-m / 15.9 lb-ft @ 8500 rpm |
| Transmission: | 6 Speed | 6 Speed | 5 Speed | 6 Speed |
| Frame: | Aluminium die-cast, diamond shaped | Perimeter, high-tensile steel | Camshaft Valvetrain Configuration | Duplex cradle |
| Front Suspension: | Telescopic upside forks, | 41 mm telescopic fork | Telescopic forks | Telescopic forks |
| Rear Suspension: | Link-type swingarm, | Offset laydown single-shock with adjustable preload | Dual shocks | Dual shocks, swing arm, 5-position preload adjustable |
| Front Brakes: | 2x 320mm discs 4 piston calipers | 2x 300mm discs 2 piston Calipers | Single 282mm disc | Single 267mm disc |
| Rear Brakes: | Single 245mm disc 1 piston caliper | Single 220mm disc 1 piston Caliper | 130mm drum | 178mm Drum |
| Front Tyre: | 120/70 ZR17 | 120/70ZR17 | 3.00-19 | 3.00-18 |
| Rear Tyre: | 190/50 ZR17 | 160/60ZR17 | 130/90-15 | 3.50-18 |
| Wheelbase: | 1461 mm / 57.5 in | 1410 mm / 55.5 in | 1495 mm / 58.9 in | 1359 mm / 53.5 in |
| Seat Height: | 815 mm / 32.1 in | 805 mm / 31.7 in | 685 mm / 27.0 in | 810 mm / 31.8 in |
| Wet Weight: | 221 kg / 487 lbs | 209 kg / 460 lbs | 145 kg / 319.6 lbs | 174 kg / 392.4 lbs |
| Fuel Capacity: | 18 Litres / 4.76 gal | 16 Litres / 4.2 US gal | 9.5 Liters / 2.5 US gal | 14 Litres / 3.7 US gal |