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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.