Ducati 250 Diana

 

 

 

Make Model.

Ducati 250 Diana

Year

1961 - 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 8.0:1

Induction

Dell'Orto UBF24BS carburetor

Ignition

6V 40W generator

Spark Plug

Marelli CW250A

Starting

Kick

Max Power

14.4 kW / 19.5 hp @ 7550 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

2.75 -18

Rear Tyre

3.00 -18

Dimensions

Length: 2000 mm / 78.7 in
Height:   960 mm / 37.8 in

Wheelbase

1320 mm / 52.0 in

Seat Height

750 mm / 29.5 in

Dry Weight

120 kg / 265 lbs

Fuel Capacity 

17 L / 4.5 US gal / 3.7 Imp gal
Top Speed 140 km/h / 87 mph

When talking about Ducati bikes with some serious racing pedigree in the 60’s, the Ducati 250 Diana has to be mentioned because it was the very first sporting 250 model that every young man had his eyes set on.

Aesthetically, the racing heritage was pretty evident, specifically the addition of racy clip-on handlebars, handsome new styling, and crackling exhaust note. It also weighed just 265 pounds, making its 249 cc SHC single engine more than capable of being a barn burner.

The horsepower output from the 250 Diana reaches 24 ponies and was capable of blasting off at a top speed of 85 mph. Eventually, the 250 Diana’s success spawned itself into a new model - the Mark 3 Super Sport - one that was more than adept at producing a stout 30 horsepower and mated to a five-speed transmission.