Ducati 749S (2004) vs Kawasaki VN 650 Vulcan S Café (2017-18) vs Yamaha DT 250 (1977) vs Kawasaki Z 900RS (2019)
Comparison technical specifications
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| Make: | Ducati | Kawasaki | Yamaha | Kawasaki |
| Model: | 749S | VN 650 Vulcan S Café | DT 250 | Z 900RS |
| Years: | 2004 | 2017-18 | 1977 | 2019 |
| Engine: | Four stroke, 90°“L”twin cylinder, DOHC, desmodromic 4 valve per cylinder, belt driven | Four stroke, parallel twin cylinder. DOHC, 4 valves per cylinder. | Two stroke, single cylinder | Four stroke, transverse four cylinder, DOHC, 4 valve per cylinder |
| Capacity: | 748.4 cc / 45.7 cu in | 649 cc / 39.65 cu /in | 246 cc / 15.0 cu-in | 948 cc / 57.8 cu-in |
| Bore x Stroke: | 90 x 58.8 mm | 83 x 60 mm | 70 x 64 mm | 73.4 x 56.0 mm |
| Cooling System: | Liquid cooled | Liquid cooled | Air cooled | Liquid cooled |
| Compression Ratio: | 12.3:1 | 10.8:1 | 6.8:1 | 11.8:1 |
| Lubrication: | Wet sump | Wet sump | Autolube | Forced lubrication wet sum |
| Induction: | Marelli electronic fuel injection, 54 mm throttle body | Fuel system DFI® with two 38mm throttle bodies, with sub-throttles | Single 28mm Mikuni VM28SS | DFI with 36mm Keihin throttle bodies |
| Ignition: | Digital CDI | TCBI with digital advance | External-rotor magneto; CDI; six-volt battery | TCBI with electronic advance |
| Starting: | Electric | Electric | Kick | Electric |
| Max Power: | 81 kW / 110 hp @ 10500 rpm | 61 hp / 44.5 kW) @ 7500 rpm | 17 hp 12.6 kW @ 6000 rpm | 110 hp / 82 kW @ 8500rpm |
| Max Torque: | 78.8 Nm / 8.0 kgf-m / 58.1 ft-lb @ 8500 rpm | 63 Nm / 46.5 ft.lb @ 6600 rpm | 20.7 Nm / 15.3 lb-ft @ 5500 rpm | 98 Nm / 72.7 lb-ft @ 7700 rpm |
| Transmission: | 6 Speed | 6 Speed with positive neutral finder | 5 Speed | 6 Speed |
| Final Drive: | Chain | Sealed chain | Chain | Sealed chain |
| Frame: | Tubular ALS450 steel trellis | High-tensile steel double pipe perimeter frame | Double-downtube, full-cradle, mild-steel frame; tubular-section, mild-steel swing arm | High-tensile steel trellis. |
| Front Suspension: | Showa 43mm fully-adjustable upside-down fork with TiN | 41 mm hydraulic telescopic fork | Oil-damped, coil-spring fork with forward-mounted axle and | 41mm inverted fork with compression and rebound damping and spring preload adjustability |
| Front Wheel Travel: | 125 mm / 4.9 in | 129 mm / 5.1 in | 195 mm / 7.6 in | 120 mm / 4.7 in |
| Rear Suspension: | Progressive linkage with fully-adjustable Showa monoshock | Lay-down offset rear shock with linkage and adjustable preload | DeCarbon-type, nitrogen-charged mono-shock producing | Horizontal Back-link, gas-charged shock with rebound and preload adjustability |
| Rear Wheel Travel: | 128 mm / 5.0 in | 81.2 mm / 3.2 in | 152 mm / 5.9 in | 140 mm / 5.5 in |
| Front Brakes: | 2 x 320mm Disc, 4 piston calipers | Single 300mm disc 2 piston caliper | Conical hub with drum brake | 2x semi-floating 300 mm discs 4 piston calipers |
| Rear Brakes: | Single 245 mm disc, 2 piston caliper | Single 250mm disc 1 piston caliper | Conical hub with rod-actuated drum brake | Single 220mm disc 1 piston caliper |
| Front Tyre: | 120/70 ZR17 | 120/70 -R18 | 3.00-21 | 120/70 ZR17 |
| Rear Tyre: | 180/55 ZR17 | 160/60 R17 | 4.00-18 | 180/55ZR17 |
| Dimensions: | Length: 2095 mm / 82.5 in Width: 730 mm / 28.7 in Height: 1090 mm / 42.9 in | Length 2311 mm / 91.0 in. Width 881.3 mm / 34.7 in. Height 1099.8 mm / 43.3 in | Width 870 / 34.2 in | Length 2100 mm / 82.6 in Width 825 mm / 32.4 in Height 1150 mm / 45.2 in |
| Wheelbase: | 1420 mm / 55.9 in | 1574.8 mm / 62 in. | 1420 mm / 55.9 in | 1470 mm / 57.8 om |
| Seat Height: | 780 mm / 30.7 in | 706 mm / 27.8 in | 856 mm / 33.7 in | 795 mm / 31.3 in |
| Fuel Capacity: | 15.5 L / 4.1 US gal / 3.4 Imp gal | 14 Litres / 3.7 US gal | 8.5 Litres / 2.2 gal | 17 Litres / 4.5 US gal |