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Ducati 100/25 Brio

Make Model	Ducati 100 Brio and 100/25 Brio
Year	100 Brio: 1964 - 65 100/25 Brio: 1966 - 68
Engine	Two-stroke, single cylinder, piston port
Capacity	94 cc / 5.7 cu in
Bore x Stroke	51 x 46 mm
Compression Ratio	100 Brio: 8.5:1 100/25 Brio: 10:1
Cooling System	Fan cooled
Induction	Dell'Orto SHB 18/16 carburetor
Ignition	6V 30W flywheel magneto, 16-18
Spark Plug	Marelli CW260N / Beru 260-14 / KLG F-100
Starting	Kick
Max Power	5.3 kW / 7.2 hp @ 7000 rpm
Clutch	Wet, multiplate
Transmission	Three Speed
Final Drive	Chain
Frame	Pressed steel
Front Suspension	Swinging shackle fork
Rear Suspension	Swingarm, twin rubber shocks
Front Brakes	Drum, 105 mm
Rear Brakes	Drum, 105 mm
Front Tyre	2.45 x 8
Rear Tyre	3.50 x 8
Dry Weight	80 kg / 176 lbs
Top Speed	76 km/h / 47 mph

The launch of the Ducati Brio, which is Italian for ‘lively’, in 1963 marked Ducati’s second foray into the scooter market having produced the unsuccessful Cruiser scooter in 1952. The Cruiser featured a 175cc, four-stroke engine and an automatic gearbox but was significantly overpriced and only 1,000 were produced. Production ended in 1954. However, with designer, Gio Ponti, put in charge of developing a new, less expensive design in 1962, the Brio met with considerable success although it has been suggested that Ponti’s design was derived by simply reverse engineering a Lambretta. The headset and front mudguard are virtually identical to those found on a Lambretta and it has similar overall styling.

The Brio was produced with a choice of two engine capacities, 50cc or 100cc, and the fan-cooled, two-stroke engine featured a cast aluminium shroud to direct cooling air around the cylinder barrel and head. It is coupled to a three-speed gearbox with gear shifting achieved via a twist grip on the handlebar.