The Ducati 250 Diana Mark 3 is a four-stroke, single cylinder motorcycle produced between 1962 and 1964. It features a Desmo SOHC, bevel gear-driven engine with a capacity of 248.6 cc and a compression ratio of 10.0:1. The bike has a Dell’Orto SS1 27A carburetor induction and 6V 40W generator, magneto ignition which is started by kick. It produces a maximum power of 22.4 kW / 19.5 hp @ 8300 rpm. The motorcycle is equipped with a four-speed transmission and chain final drive. The front suspension consists of Ducati 31.5 mm hydraulic telescopic forks while the rear suspension is swingarm with dual shocks and 3-way adjustable. It has a front and rear drum brakes with a size of 180 mm and 160 mm, respectively. The front and rear tires are 2.50 -18 and 2.75 -18, respectively. The bike has a length of 2000 mm, width of 580 mm, height of 1090 mm, wheelbase of 1320 mm, seat height of 750 mm, and dry weight of 110 kg. It has a fuel capacity of 17 L and can reach a top speed of 177 km/h. Overall, the Ducati 250 Diana Mark 3 is a classic motorcycle with a unique design and high performance capabilities.
Technical specifications:
Make Model: Ducati 250 Diana Mark 3
| Year | 1962 – 64 |
|---|---|
| Engine | Four stroke, single cylinder, Desmo SOHC, bevel gear-driven |
| Capacity | 248.6 cc / 15.2 cu in |
| Bore x Stroke | 74 x 57.8 mm |
| Compression Ratio | 10.0:1 |
| Induction | Dell’Orto SS1 27A carburetor |
| Ignition | 6V 40W generator, magneto |
| Spark Plug | Marelli CW260A |
| Starting | Kick |
| Max Power | 22.4 kW / 19.5 hp @ 8300 rpm |
| Primary Drive Ratio | 2.500:1 |
| Transmission | 4 Speed |
| Gear Ratios | 1 st 2.75 / 2nd 1.65 / 3rd 1.18 / 4th 0.97:1 |
| Final Drive | Chain |
| Final Drive Ratio | 2.647:1 |
| Front Suspension | Ducati 31.5 mm hydraulic telescopic forks |
| Rear Suspension | Swingarm, dual chocks, 3-way adjustable |
| Front Brakes | 180 mm Drum |
| Rear Brakes | 160 mm Drum |
| Front Tyre | 2.50 -18 |
| Rear Tyre | 2.75 -18 |
| Dimensions | Length: 2000 mm / 78.7 in Width: 580 mm / 22.6 in Height: 1090 mm / 42.9 in |
| Wheelbase | 1320 mm / 52.0 in |
| Seat Height | 750 mm / 29.5 in |
| Dry Weight | 110 kg / 242 lbs |
| Fuel Capacity | 17 L / 4.5 US gal / 3.7 Imp gal |
| Top Speed | 177 km/h / 110 mph |
