Kawasaki VN 650 Vulcan S Café (2017-18) vs Kawasaki KLX 650 (1997) vs Kawasaki S1 250SS MKI (1972-73)
Comparison technical specifications
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| Make: | Kawasaki | Kawasaki | Kawasaki |
| Model: | VN 650 Vulcan S Café | KLX 650 | S1 250SS MKI |
| Years: | 2017-18 | 1997 | 1972-73 |
| Engine: | Four stroke, parallel twin cylinder. DOHC, 4 valves per cylinder. | Four stroke, single cylinder, DOHC, 4 valve | Two stroke, transverse three cylinder, |
| Capacity: | 649 cc / 39.65 cu /in | 651 cc / 39.7 cu-in | 249 cc / 15.2 cu-in |
| Bore x Stroke: | 83 x 60 mm | 100 x S3mm | 45 x 52.3mm |
| Cooling System: | Liquid cooled | Liquid cooled | Air cooled |
| Compression Ratio: | 10.8:1 | 9.5:1 | 7,3:1 |
| Induction: | Fuel system DFI® with two 38mm throttle bodies, with sub-throttles | Single 40mm Keihin CV carburetor | 3x Mikuni VM22SC, Ø 22 mm carburetor |
| Ignition: | TCBI with digital advance | CDI | Battery and coil |
| Starting: | Electric | Kick | Kick |
| Max Power: | 61 hp / 44.5 kW) @ 7500 rpm | 48 hp / 35.0 kW @ 6500 rpm | 32 hp / 23.8 kW @ 8 500 rpm |
| Max Torque: | 63 Nm / 46.5 ft.lb @ 6600 rpm | 5.3 kgf-m / 38.3 lb-ft @ 5500 rpm | 2.54 m-kg / 18.3 lb-ft @ 7 000 rpm |
| Transmission: | 6 Speed with positive neutral finder | 5 Speed | 5 Speed |
| Final Drive: | Sealed chain | Chain | Chain |
| Front Suspension: | 41 mm hydraulic telescopic fork | Kayaba upside-down | Telescopic hydraulic forks |
| Rear Suspension: | Lay-down offset rear shock with linkage and adjustable preload | Kayaba single shock | Dual shocks, Swing arm |
| Front Brakes: | Single 300mm disc 2 piston caliper | Single disc | 180mm Drum |
| Rear Brakes: | Single 250mm disc 1 piston caliper | Single disc | 180mm Drum |
| Front Tyre: | 120/70 -R18 | 90/90-21 | 3.00 -18 |
| Rear Tyre: | 160/60 R17 | 130/80-17 | 3.25 -18 |
| Wet Weight: | 223.0 kg / 491.7 lbs | 153 kg / 337 lbs | 160 kg / 348 lbs |
| Fuel Capacity: | 14 Litres / 3.7 US gal | 12 Litres / 3.1 US gal | 15 Litres / 3.9 US gal |