The Aermacchi/Harley Davidson SST 250 motorcycle was produced in 1978 with a two-stroke, single cylinder engine that had a capacity of 242.6 cc. It had air cooling and a compression ratio of 10.3:1. The bike used a 32mm Dell’Orto carburetor for induction and had a battery and coil ignition system, later models featuring electronic CDI. The bike was started using a kick start. It produced a maximum power of 17 HP at 7000 rpm. The bike had a 5-speed transmission and used a chain for final drive. The front suspension was an oil damper Ceriant telescopic fork while the rear suspension was a pivoted fork and Betor dampers with 3-way adjustment. The bike had a single disc front brake and a drum rear brake. It had a dry weight of 114kg / 252lbs and a wet weight of 129 kg / 294.4 lbs. The fuel tank capacity was 10.5 litres / 2.7 US gallons and the bike had an average fuel consumption of 45 mpg. It had a top speed of 85 mph.
Technical specifications:
Make Model: Aermacchi / Harley Davidson SST 250
| Year | 1978 – |
|---|---|
| Engine | Two stroke, single cylinder |
| Capacity | 242.6 cc / 14.8 cu-in |
| Bore x Stroke | 72 x 59.6 mm |
| Cooling System | Air cooled |
| Compression Ratio | 10.3:1 |
| Induction | 1x 32mm Dell’Orto carburetor |
| Ignition | Battery & coil later moeel Electronic CDI |
| Starting | kick |
| Max Power | 17 HP / 12.4 kW @ 7000 rpm |
| Transmission | 5 Speed |
| Final Drive | Chain |
| Front Suspension | Oil damper Ceriant telescopic fork |
| Rear Suspension | Pivoted fork and Betor dampers 3-way adjustment |
| Front Brakes | Single disc |
| Rear Brakes | Drum |
| Front Tyre | 3.25 -19 |
| Rear Tyre | 4.00 -18 |
| Dry Weight | 114 kg / 252 lbs |
| Wet Weight | 129 kg / 294.4 lbs |
| Fuel Capacity | 10.5 Litres / 2.7 US gal |
| Consumption Average | 45 mpg |
| Top Speed | 85 mph |