Kawasaki S3 400SS MKII (1974) vs Ducati 125 Turismo Speciale (1958-65) vs Triumph Bonneville Bobber Black (2019)
Comparison technical specifications
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| Make: | Kawasaki | Ducati | Triumph |
| Model: | S3 400SS MKII | 125 Turismo Speciale | Bonneville Bobber Black |
| Years: | 1974 | 1958-65 | 2019 |
| Engine: | Two stroke, transverse three cylinder | Four stroke, single-cylinder, OHC, bevel gear driven | Four stoke, parallel twin, 270o crank, SOHC |
| Capacity: | 399 cc / 24.3 cu-in | 124.4 cc / 7.6 cu in | 1198 cc / 73.1 cu in |
| Bore x Stroke: | 57 x 52.3 mm | 55.2 x 52 mm | 97.6 x 80 mm |
| Cooling System: | Air cooled | Air cooled | Liquid cooled |
| Compression Ratio: | 6,5:1 | 7.0:1 | 10.0:1 |
| Induction: | 3x Mikuni VM26SC, Ø 26 mm carbs | Dell'Orto UB18BS or ME18BS carburetor | Multipoint sequential electronic fuel injection |
| Ignition: | Battery and coil | Battery and coil, 6V 40W generator | Digital |
| Starting: | Kick | Kick | Electric |
| Max Power: | 42 hp @ 7000 rpm | 5.2 kW / 7 hp @ 7000 rpm | 57.4 kW / 77 hp @ 6550 rpm |
| Transmission: | 5 Speed | 4 Speed | 6-Speed |
| Final Drive: | Chain | Chain | Chain, X-ring |
| Frame: | Double tubular steel cradle | Single tubular downpipe cradle | Dual tubular steel cradle |
| Front Suspension: | Telescopic Hydraulic forks | Hydraulically damped telescopic forks, Marzocci | 47mm non-adj Showa fork |
| Rear Suspension: | Dual shocks, Swing arm | Swingarm, dual shocks, 3-way adjustable | Kayaba twin shocks with adjustable preload |
| Front Brakes: | Single 277mm disc | Drum, 158 mm | 2x 310 mm Disc, 2 piston Brembo calipers, ABS |
| Rear Brakes: | 180mm Drum | Drum, 136 mm | Single 255 mm disc, 2 piston caliper, ABS |
| Front Tyre: | 3.25 -18 | 2.50 - 17 CEAT | 130/90 B16 |
| Rear Tyre: | 3.50 -18 | 2.75 - 17 CEAT | 150/80 R16 |
| Wheelbase: | 1364 mm / 53.7 in | 1310 mm / 52.0 in in | 1510 mm / 59.4 in |
| Fuel Capacity: | 14 Litres / 3.7 US gal | 16 L / 4.2 US gal / 3.5 Imp gal | 9.1 Litres / 2.4 US gal |