| Year | 1979 |
| Battery | Yuasa B68 36Ah |
| Bore x Stroke | 86 x 74.4 mm |
| Braking: 100 km/h - 0 | 39 m / 128 ft |
| Capacity | 864 cc / 52.7 cu in |
| Clutch | Wet, multiplate |
| Compression Ratio | 9.4:1 |
| Consumption Average | 5.2 L/100 km / 19.1 km/l / 45 US mpg / 54.0 Imp mpg |
| Cooling System | Air cooled |
| Dimensions | Length: 2260 mm / 88.9 in Width: 780 mm / 30.7 in Height: 1090 mm / 42.9 in |
| Dry Weight | 216 kg / 476 lbs |
| Engine | Four stroke, 90°“L”twin cylinder, SOHC, 2 valves per cylinder, bevel gear driven |
| Final Drive | Chain |
| Final Drive Ratio | 2.533:1 (15/38) |
| Front Brakes | 2 x 280 mm Disc, 1 piston caliper |
| Front Suspension | 38 mm Ceriani 608 telescopic fork |
| Front Wheel | 3.50 - 18 |
| Fuel Capacity | 15 L / 4.0 US gal / 3.3 Imp gal |
| Gear Ratios | 1st 2.237 / 2nd 1.562 / 3rd 1.203 / 4th 1.000 / 5th 0.887 |
| Ignition | Electronic |
| Induction | 2 x Dell'Orto PHM 40 A, B or C carburetors |
| Manual | Bevelheaven.com |
| Max Power | 47.8 kW / 65 hp @ 7500 rpm |
| Primary Drive Ratio | 2.187:1 (32/70) |
| Rear Brakes | Single 260 mm disc |
| Rear Suspension | Marzocchi 300 mm dual shocks, 3-way adjustable |
| Rear Wheel | 4.25 - 18 |
| Road Test | BIKE 1978 Ducati 900SS vs Le Mans III |
| Seat Height | 780 mm / 30.7 in |
| Spark Plugs | Champion L88A / Bosch WM7B |
| Standing ¼ Mile | 13.6 sec / 159 km/h / 98.8 mph |
| Starting | Electric |
| Top Speed | 185 km/h / 114 mph |
| Transmission | 5 Speed |
| Wet Weight | 224 kg / 494 lbs |
| Wheelbase | 1550 mm / 61.0 in |
