Ducati 48 Piuma / 48 Export / 48 Sport / 50 Puima / 50 Sport (1961-68) vs Ducati 400SS Junior (Half Fairing) (1991-98)
Comparison technical specifications
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| Make: | Ducati | Ducati |
| Model: | 48 Piuma / 48 Export / 48 Sport / 50 Puima / 50 Sport | 400SS Junior (Half Fairing) |
| Years: | 1961-68 | 1991-98 |
| Engine: | Two stroke, single cylinder, piston-port | Four stroke, 90°“L”twin cylinder, SOHC, desmodromic 2 valve per cylinder. |
| Capacity: | 47.6 cc / 2.9 cu in | 398 cc / 24.3 cu in |
| Bore x Stroke: | 38 x 42 mm | 70.5 x 51 mm |
| Compression Ratio: | 6.3:1 (Export: 9.5:1) | 10.0:1 |
| Cooling System: | Air cooled | Air cooled |
| Induction: | Dell'Orto T4 12D1 Sport / Export: Dell'Orto UA 15S | Mikuni B79 carburetor |
| Ignition: | 6V 18W Flywheel magneto 15-18 | Kokusan electronic |
| Starting: | Kick | Electric |
| Max Power: | 1.1 kW / 1.5 hp @ 5200 rpm Sport / Export: 3.1kW / 4.2hp @ 8600 rpm | 30.9 kW / 42 hp @ 10000 rpm |
| Transmission: | Three speed | 6 Speed |
| Final Drive Ratio: | 2.786:1 | 3.210:1 (14/45) |
| Final Drive: | Chain | Chain |
| Front Suspension: | Telescopic fork | Marzocchi inverted telescopic fork, 40USD/E |
| Rear Suspension: | Swingarm, twin shocks | Cantilever swingarm, Marzocchi PBS1R monoshock, preload and rebound damping |
| Front Brakes: | Drum, 90 mm (Export 105 mm) | Single 320 mm disc |
| Rear Brakes: | Drum, 90 mm (Export 105 mm) | Single 245 mm disc |
| Dimensions: | Length: 1770 mm / 69.7 in Height: 930 mm / 36.6 in | Length: 2020 mm / 79.5 in Width: 730 mm / 28.7 in Height: 1110 mm / 43.7 in |
| Wheelbase: | 1160 mm / 45.7 in | 1410 mm / 55.5 in |
| Seat Height: | 760 mm / 29.9 in | 750 mm / 29.5 in |
| Dry Weight: | Piuma: 47 kg / 104 lbs Sport: 49 kg / 108 lbs Export: 50 kg / 110 lbs | 173 kg / 381 lbs |
| Top Speed: | Piuma: 50 km/h / 31 mph Sport / Export: 80 km/h / 50 mph | 180 km/h / 112 mph |