Kawasaki Zephyr 750 (1996-97) vs Kawasaki BJ 250 Estrella RS (1996-99) vs Yamaha WR 250R (2008-09) vs Honda VT1100C Shadow (1985-86) vs Yamaha YZF R6S (2008-09)
Comparison technical specifications
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| Make: | Kawasaki | Kawasaki | Yamaha | Honda | Yamaha |
| Model: | Zephyr 750 | BJ 250 Estrella RS | WR 250R | VT1100C Shadow | YZF R6S |
| Years: | 1996-97 | 1996-99 | 2008-09 | 1985-86 | 2008-09 |
| Engine: | Four stroke, transverse four cylinder , DOHC, 2 valves per cylinder | Four stroke, single cylinder, SOHV , 2 valves | Four stroke, single cylinder, DOHC, 4 valve | Four stroke, 45°V-Twin, SOHC, 3 valve per cylinder. | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. |
| Capacity: | 738 cc / 45.6 cu-in | 249 cc / 15.2 cu-in | 249 / 15.2 cub in. | 1099.2 cc / 67.07 cu-in | 599 cc / 36.5 cu-in |
| Bore x Stroke: | 66 x 54 mm | 66 X 63 mm | 77 x 53.6 mm | 87.5 x 91.4 mm | 67 x 42.5 mm |
| Cooling System: | Air cooled, | Air cooled | Liquid cooled | Liquid cooled | Liquid cooled |
| Compression Ratio: | 9.5:1 | 9.0:1 | 11.8:1 | 9.0:1 | 12.8:1 |
| Induction: | 4x 32mm Keihin carburetors | Carburetor | Electronic fuel injection | 2x 36mm Keihin carburetors | Fuel Injection |
| Ignition: | Analogue CDI (Capacitive Discharge | CDI | TCI | CDI | Digital TCI |
| Starting: | Electric | Electric | Electric | Electric | Electric |
| Max Power: | 71 hp / 52.6 kW @ 9500 rpm | 20 hp / 14.9 kW @ 6000 rpm | 22.6 kW / 30.3 hp @ 10 000 rpm | 78.4 hp / 58.4 kW @ 6000 rpm | 127 hp / 94.7 kW @14500 rpm |
| Max Torque: | 56.8 Nm / 42.0 lb-ft @ 7300 rpm | 21 Nm / 15.5 lb-ft @ 5000 rpm | 23.7 Nm 2.42 kgf-m / 17.5 lb-ft. @ 8 000 rpm | 101 Nm / 10.1 kg-m @ 4500 rpm | 66 Nm / 48.6 lb-ft @ 1100 rpm |
| Transmission: | 5 Speed | 5 Speed | 6 Speed | 5 Speed | 6 Speed |
| Final Drive: | Chain | Chain | Chain | Shaft | Chain |
| Front Suspension: | 41mm Telescopic forks no adjustmen | Telescopic forks | Telescopic fork | 41mm Showa telescopic forks | 41mm upside down forks with 2-way compression damping adjustable |
| Rear Suspension: | Dual gas shocks adjustable for preload, rebound, and compression. | Dual shocks | Swingarm link suspension, mono-shock | Dual shock | Fully adjustable rear shock absorber with 2-way compression damping |
| Front Brakes: | 2x 300mm discs 2 piston calipers | Single 300mm disc | Single 250mm disc | 2x 269 mm disc 2 piston caliper | 2x 320mm discs |
| Rear Brakes: | Single 230mm disc 1 piston caliper | Single 230mm disc | Single 230mm disc | 195 mm Drum | Single 220mm disc |
| Front Tyre: | 120/70 VR17 | 90/90-18 51 P | 80/100 -21 | 110/90-18 61H | 120/70 ZR17 |
| Rear Tyre: | 150/70 VR17 | 110/90-17 60 P | 120/80 -18 | 140/90-15 70H | 180/55 ZR17 |
| Dry Weight: | 201 kg / 443 lbs | 142 kg / 313 lbs | 126 kg / 278 lbs | 245 kg / 540 lbs | 161 kg / 355 lbs |
| Fuel Capacity: | 17 Litres / 4.4 US gal | 14 Litres / 3.7 US gal | 7.6 Litres / 2.0 US gal | 15 Litres / 4.0 US gal | 17.5 Litres / 4.6 US gal |