Ducati 100/25 Brio


Make Model

Ducati 100 Brio and 100/25 Brio


100 Brio: 1964 - 65
100/25 Brio: 1966 - 68


Two-stroke, single cylinder, piston port


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


Dell'Orto SHB 18/16 carburetor


6V 30W flywheel magneto, 16-18
Spark Plug Marelli CW260N / Beru 260-14 / KLG F-100



Max Power

5.3 kW / 7.2 hp @ 7000 rpm


Wet, multiplate


Three Speed

Final Drive

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.