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Ducati 250 Diana
1966Sportbike

Ducati 250 Diana

Key specifications

Engine
249 cc
Power
19 HP
Weight
135 kg
Fuel type
petrol
Fuel capacity
3.4 L
Front brakes
Expanding brake (drum brake)
Rear brakes
Expanding brake (drum brake)

Overview

Introducing the 1966 Ducati 250 Diana, a quintessential representation of the golden era of Italian motorcycles. Positioned in the sport category, this classic bike is a tribute to the spirited design and engineering philosophy that Ducati is renowned for. With its sleek lines and striking aesthetics, the 250 Diana captured the hearts of both racing enthusiasts and casual riders alike, earning a reputation for its exhilarating performance and light handling. This motorcycle is not just a means of transportation; it is a statement of freedom and adventure, beckoning riders to explore the open road. At the heart of the Ducati 250 Diana lies a spirited single-cylinder, four-stroke engine, boasting a displacement of 249 cc that delivers a robust 19 horsepower at 7,750 RPM. This engine configuration, combined with an 8.0:1 compression ratio, ensures a thrilling ride, allowing the motorcycle to reach a top speed of 150 km/h (93.2 mph). The Dell’Orto 29mm carburettor optimizes fuel delivery, while the air cooling system keeps the engine running smoothly even during spirited rides. The lightweight design, tipping the scales at just 135 kg (297.6 pounds), contributes to its exceptional power-to-weight ratio of 0.1407 HP/kg, making the 250 Diana remarkably agile and responsive in the twisties. The 250 Diana features a host of key components that reflect the technology of its time. The front and rear expanding drum brakes, measuring 180 mm and 160 mm respectively, offer reliable stopping power, while the hydraulic telescopic forks and dual shock absorbers provide a comfortable ride over varied terrains. With a fuel capacity of 13 liters (3.43 gallons), this motorcycle strikes a balance between performance and practicality, allowing for longer rides without frequent stops for refueling. Its elegant design, coupled with the functional aspects of the suspension and braking systems, ensures that riders can enjoy both style and substance. **

Pros

  • Lightweight and Agile: At just 135 kg, the 250 Diana is easy to maneuver, making it ideal for both city commuting and spirited country rides.
  • Classic Italian Design: The bike's aesthetic captures the essence of 1960s motorcycling, appealing to vintage enthusiasts and collectors alike.
  • Responsive Engine: The single-cylinder engine provides a peppy performance, ensuring an engaging riding experience with a top speed of 150 km/h.

Cons

  • Drum Brakes: While adequate for its time, the drum brakes may not offer the stopping power and modulation that modern riders expect.
  • Limited Power: With 19 HP, the performance may feel modest compared to contemporary sport bikes, limiting its appeal for those seeking high-speed thrills.
  • Basic Technology: The absence of advanced features such as modern fuel injection or ABS may deter riders looking for the latest in motorcycle technology.

Technical details

Source specification data

Make
Ducati
Model
250 Diana
Category
Sport
Power
19.00 HP (13.9 kW)) @ 7750 RPM
Top Speed
150.0 km/h (93.2 mph)
Fuel System
Carburettor. DellÓrto 29mm carbs
Bore X Stroke
74.0 x 57.8 mm (2.9 x 2.3 inches)
Compression
8.0:1
Displacement
249.00 ccm (15.19 cubic inches)
Cooling System
Air
Engine Details
Single cylinder, four-stroke
Transmission Type Final Drive
Chain
Dry Weight
135.0 kg (297.6 pounds)
Fuel Capacity
13.00 litres (3.43 gallons)
Power Weight Ratio
0.1407 HP/kg
Seat
Dual seat
Rear Tyre
3.00-18
Front Tyre
2.75-18
Rear Brakes
Expanding brake (drum brake)
Front Brakes
Expanding brake (drum brake)
Rear Suspension
Dual choks
Front Suspension
Hydralic telescopic forks
Rear Brakes Diameter
160 mm (6.3 inches)
Front Brakes Diameter
180 mm (7.1 inches)