1964 Ducati 250 Diana

Specifications
- Category
- Sport
- Displacement
- 249.0 ccm (15.19 cubic inches)
- Displacement (cc)
- 249.00
- Engine details
- Single cylinder, four-stroke
- Power
- 19.0 HP (13.9 kW)) @ 7750 RPM
- Top speed
- 150.0 km/h (93.2 mph)
- Compression
- 8.0:1
- Bore × stroke
- 74.0 x 57.8 mm (2.9 x 2.3 inches)
- Fuel system
- Carburettor. DellÓrto 29mm carbs
- Fuel control
- Desmodromic valve control
- Cooling
- Air
- Transmission
- Chain (final drive)
- Front suspension
- Hydralic telescopic forks
- Rear suspension
- Dual choks
- Front tyre
- 2.75-18
- Rear tyre
- 3.00-18
- Front brakes
- Expanding brake (drum brake)
- Front brake Ø
- 180 mm (7.1 inches)
- Rear brakes
- Expanding brake (drum brake)
- Rear brake Ø
- 160 mm (6.3 inches)
- Dry weight
- 135.0 kg (297.6 pounds)
- Fuel capacity
- 13.00 litres (3.43 US gallons)
The 1964 Ducati 250 Diana
The 1964 Ducati 250 Diana represented the mid-range sport offering in Ducati's lineup, balancing performance aspirations with everyday usability. This quarter-liter single delivered genuine sporting character that rewarded committed riding while remaining approachable for intermediate riders stepping up from smaller machines. With its 93 mph top speed capability, the Diana offered real highway performance wrapped in classic Italian styling that emphasized function over flash. The bike demanded rider engagement — this wasn't transportation so much as a partnership between machine and pilot that paid dividends on winding roads and weekend tours.
The 1964 model carried over without significant mechanical changes from the prior year — buyers comparing it to a 1963 example should focus on mileage, service history, and condition rather than spec differences. This was the Diana's final production year, marking the end of an era for Ducati's mid-displacement sport bikes.
Today's Ducati 250 Diana attracts vintage sport bike enthusiasts who appreciate authentic Italian engineering from the marque's formative years. These machines appeal to collectors seeking moderate investment potential and riders who want classic Ducati character without the premium pricing of larger-displacement models from the same period.




