Ducati 100 and 100/25 Brio (100Brio:1964-65100/25Brio:1966-68)

The Ducati 100 Brio and 100/25 Brio were small motorcycles manufactured in the mid-1960s. Both models had a two-stroke, single cylinder engine with a capacity of 94cc and a Dell’Orto SHB 18/16 carburetor. The 100 Brio had a compression ratio of 8.5:1, while the 100/25 Brio had a higher ratio of 10:1. The bikes were cooled by a fan and used a 6V 30W flywheel magneto ignition system. The maximum power output was 5.3 kW or 7.2 hp at 7000 rpm. The clutch was a wet, multiplate type, and the transmission had three speeds. The bikes used a chain final drive and had a pressed steel frame. The front suspension was a swinging shackle fork, and the rear suspension used twin rubber shocks on a swingarm. Both the front and rear brakes were drums, with a diameter of 105 mm. The front and rear tyres had sizes of 2.45 x 8 and 3.50 x 8, respectively. The dry weight of the bike was 80 kg or 176 lbs. The top recorded speed for the bikes was 76 km/h or 47 mph.

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Technical specifications:

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