Ducati 250 Diana Mark 3

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

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 Mark 3 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 whilst initially continuing with the four speed transmission it was eventually mated to a five-speed transmission.