Triumph Bonneville 750 T140E (1979) vs Kawasaki VN 900 Vulcan Classic S.E. (2016) vs Harris Rayner Ducati () vs Suzuki DR 250S (1982-83)
Comparison technical specifications
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| Make: | Triumph | Kawasaki | Harris | Suzuki |
| Model: | Bonneville 750 T140E | VN 900 Vulcan Classic S.E. | Rayner Ducati | DR 250S |
| Years: | 1979 | 2016 | 1982-83 | |
| Engine: | Four stroke, parallel twin, OHV, 2 valves per cylinder | Four stroke V-Twin, SOHC, 4 valve | Four stroke, 90°“L”twin cylinder, SOHC, desmodromic 2 valve per cylinder. | Four stroke, single cylinder, SOHC, 4 valves, TSCC |
| Capacity: | 744 cc / 45.4 cu in | 903 cc / 49 cu-in | 642 | 249 cc / 15.2 cu in |
| Bore x Stroke: | 76 x 82 mm | 88.0 x 74.2 mm | 84 x 58 mm | 72 х 61.2 mm |
| Compression Ratio: | 8.6:1 | 9.5:1 | 10.5:1 | 8.9:1 |
| Cooling System: | Air cooled | Liquid cooled | Air cooled | Air cooled |
| Induction: | 2 x 30 mm Amal carburetors | Fuel injection: ø 34 mm x 2 with dual throttles | 2x 36mm Dell'Orto PHM carbs | Mikuni VM28SS carburetor |
| Ignition: | Battery / dual coil / dual points / Lucas | Digital | Bosch PTZ Electronic | Transistorized |
| Starting: | Electric and kick | Electric | Electric | Kick |
| Transmission: | 5 Speed | 5 Speed | 5 Speed | 5 Speed, constant mesh |
| Final Drive: | Chain, 106 links | Belt | Chain | Chain |
| Front Suspension: | Telescopic forks | 41mm telescopic fork with 7-way preload | Telescopic front fork. Pivoted | Air/oil telescopic forks |
| Rear Suspension: | Swingarm, Girling shocks, 3-way spring preload adjustable | Uni-Trak with 7-way adjustable preload | Cantilever fork with De Carbon unit. | Gas/oil full floater, preload and damping adjustable, 148mm wheel travel |
| Front Brakes: | Single 254 mm disc, 1 piston caliper | Single 300mm disc 2 piston caliper | 2x 254 mm discs | Drum, internal expanding |
| Rear Brakes: | Single 254 mm disc, 1 piston caliper | Single 270mm disc 2 piston caliper | Single 254 mm disc | Drum, internal expanding |
| Front Tyre: | 3.25-19 | 130/90 -16 | 4.10 x 18 | 3.00-21, 4PR |
| Rear Tyre: | 4.00-18 | 180/70 -15 | 4.25 x 18 | 5.10-17, 4PR |
| Fuel Capacity: | 18.2 Litres / 4.8 US gal / 4.0 Imp gal | 20 Litres / 5.3 US gal. | 16 7 Litres | 9.5 Litres / 2.5 US gal / 2.1 Imp gal |