The Ducati 250 Diana (also known as the Formula 3) was a motorcycle manufactured by Italian company Ducati between 1960 and 1962. It was powered by a four stroke, single cylinder engine with a capacity of 248.6 cc, producing a maximum power output of 17.2 kW (23 hp) at 8200 rpm. The engine had a compression ratio of 8.5:1 and was cooled by air. The induction system consisted of a Dell’Orto SS1 29A carburetor and the ignition was battery and coil. The motorcycle had a kick start and a 4-speed transmission with a final chain drive. The frame was a single cradle tubular frame and it had a hydraulic telescopic fork front suspension and a swingarm with dual shocks rear suspension. The braking system consisted of drum brakes both in the front and rear wheels. The tires were 2.50-19 in the front and 2.75-19 in the rear. The Ducati 250 Diana was a popular motorcycle of its time due to its design and performance, as well as being very easy to maintain.
Technical specifications:
Make Model: Ducati 250 Formula 3
| Year | 1960 – 62 |
|---|---|
| Engine | Four stroke, single cylinder, SOHC, shaft and bevel gear driven, 2 valves per cylinder |
| Capacity | 248.6 cc / 15.2 cu in |
| Bore x Stroke | 74 x 57.8 mm |
| Compression Ratio | 8.5:1 |
| Cooling System | Air cooled |
| Induction | Dell’Orto SS1 29A carburetor |
| Ignition | Battery and coil |
| Starting | Kick |
| Max Power | 17.2 kW / 23 hp @ 8200 rpm |
| Clutch | Multi wet plate, wet |
| Transmission | 4 Speed |
| Final Drive | Chain |
| Frame | Single cradle tubular frame |
| Front Suspension | Hydraulic telescopic fork |
| Rear Suspension | Swingarm, dual shocks |
| Front Brakes | Drum |
| Rear Brakes | Drum |
| Front Tyre | 2.50 -19 |
| Rear Tyre | 2.75 -19 |
