Aermacchi / Harley Davidson SST 250 (1978)
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
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