Ducati 750GT (1973-74) vs Ducati 400SS Junior (Half Fairing) (1991-98)
Comparison technical specifications
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| Make: | Ducati | Ducati |
| Model: | 750GT | 400SS Junior (Half Fairing) |
| Years: | 1973-74 | 1991-98 |
| Engine: | Four stroke, 90°“L”twin cylinder, SOHC, 2 valves per cylinder, bevel gear driven | Four stroke, 90°“L”twin cylinder, SOHC, desmodromic 2 valve per cylinder. |
| Capacity: | 748 cc / 45.6 cu-in | 398 cc / 24.3 cu in |
| Bore x Stroke: | 80 x 74.4 mm | 70.5 x 51 mm |
| Compression Ratio: | 8.5:1 | 10.0:1 |
| Induction: | 2 x 30mm Amal R 930/76 | Mikuni B79 carburetor |
| Cooling System: | Air cooled | Air cooled |
| Spark Plugs: | Marelli CW 260T, Lodge 3HN | Champion L82YC (from 1994: RL82Y) |
| Ignition: | Points and coil | Kokusan electronic |
| Battery: | Yuasa 12N-12A-4A-12V | 12V 16Ah |
| Starting: | Kick | Electric |
| Max Power: | 41.9 kW / 57 hp @ 7700 rpm | 30.9 kW / 42 hp @ 10000 rpm |
| Transmission: | 5 Speed | 6 Speed |
| Primary Drive Ratio: | 2.448:1 (29/71) From 1974: 2.187:1 (32/70) | 2.264:1 (34/77) |
| Gear Ratios: | 1st 2.237 / 2nd 1.562 / 3rd 1.203 / 4th 1.000 / 5th 0.887:1 | 1 st 3.071 / 2nd 2.111 ./ 3rd 1.590 / 4th 1.280 / 5th 1.074 / 6th 0.931:1 |
| Final Drive Ratio: | 2.250:1 (16/36) | 3.210:1 (14/45) |
| Final Drive: | Chain | Chain |
| Front Suspension: | 38 mm Marzocchi fork From 1974: Ceriani fork | Marzocchi inverted telescopic fork, 40USD/E |
| Rear Suspension: | Dual shocks, Marzocchi 305 mm, 3-way adjustable | Cantilever swingarm, Marzocchi PBS1R monoshock, preload and rebound damping |
| Front Brakes: | Single 280mm disc | Single 320 mm disc |
| Rear Brakes: | 200 mm Drum | Single 245 mm disc |
| Front Tyre: | 3.25-19 | 130/60 VR17 |
| Rear Tyre: | 3.50-18 | 160/60 VR17 |
| Dimensions: | Length 2250 mm / 88.6 in Width 710 mm / 28.0 in Height 1070 mm / 42.1 in | Length: 2020 mm / 79.5 in Width: 730 mm / 28.7 in Height: 1110 mm / 43.7 in |
| Wheelbase: | 1530 mm / 60.2 in | 1410 mm / 55.5 in |
| Seat Height: | 780 mm / 30.7 in | 750 mm / 29.5 in |
| Dry Weight: | 185 kg / 408 lbs | 173 kg / 381 lbs |
| Fuel Capacity: | 17 Litres / 4.5 US gal | 17 L / 4.5 US gal / 3.7 Imp gal |
| Top Speed: | 200 km/h / 124 mph | 180 km/h / 112 mph |