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.
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 |
