The Ducati 100 Gran Sport “Marianna” motorcycle was produced from 1955 to 1958. It featured a four-stroke, single-cylinder engine with a capacity of 99.66cc and a maximum power output of 6.7kW at 9000rpm. The motorcycle had a compression ratio of 8.5:1, air-cooling, and a forced oil sump lubrication system. The bike had a wet, multi-plate clutch and 4-speed transmission with a final drive chain. The frame was a single tube, open cradle frame in tubular steel with hydraulically damped telescopic forks as the front suspension and a swingarm with dual shocks for the rear suspension. The front and rear brakes were both drum brakes by Amadori. The bike had a top speed of 130km/h or 81mph and weighed 80kg or 176lbs. The front and rear tires were both 2.75-17 and the wheelbase was 1250mm or 49.2in. Overall, the Ducati 100 Gran Sport “Marianna” was a powerful and lightweight motorcycle, perfect for racing or cruising.
Technical specifications:
Make Model: Ducati 100 Gran Sport “Marianna”
| Year | 1955 – 58 |
|---|---|
| Engine | Four stroke, single-cylinder, OHC, shaft and bevel gears, 31 mm inlet valve, 27 mm exhaust valve |
| Capacity | 99.66 cc / 6.08 cu in |
| Bore x Stroke | 49.4 x 52 mm |
| Compression Ratio | 8.5:1 |
| Cooling System | Air cooled |
| Lubrication System | Forced oil sump |
| Induction | Dell’Orto SS1, 20 mm |
| Ignition | Battery coil |
| Starting | Kick |
| Max Power | 6.7 kW / 9 hp @ 9000 rpm |
| Clutch | Wet, multi-plate |
| Transmission | 4 Speed |
| Final Drive | Chain |
| Frame | Single tube, open cradle frame in tubular steel |
| Front Suspension | Hydraulically damped telescopic forks |
| Rear Suspension | Swingarm, dual shocks |
| Front Brakes | Drum, Amadori |
| Rear Brakes | Drum, Amadori |
| Front Tyre | 2.75 -17 |
| Rear Tyre | 2.75 -17 |
| Wheelbase | 1250 mm / 49.2 in |
| Dry Weight | 80 kg / 176 lbs |
| Top Speed | 130 km/h / 81 mph |
