The Aermacchi / Harley-Davidson SST 250 is a powerhouse of an engine, delivering raw power and character that’s hard to match in its class.
Its single-cylinder two-stroke motor produces a thrilling mix of torque and revving capability, making it an absolute blast to ride on twisty roads or fire trails. Whether carving through canyons or cruising down highways, the SST 250 is always up for a challenge.
But what truly sets this bike apart is its incredible handling and agility, thanks in part to its sleek design and carefully tuned suspension system. The result is an effortless riding experience that’s both exhilarating and easy-going – perfect for both seasoned riders and newcomers alike.
Key Specifications
Engine Type
Two stroke, single cylinder
Engine Capacity
14.8 cubic inches / 242.6 cc
Max Power
17 HP / 12.4 kW @ 7000 rpm
Fuel Tank Capacity
2.7 US gallons / 10.5 L
Weight (Wet/Kerb)
294.4 lbs / 129 kg
*n/a – information not provided by manufacturer
All Specifications
Make & Model
Model
Aermacchi / Harley DavidsonSST 250
Year
1978 –
Engine
Engine Type
Two stroke, single cylinder
Displacement
14.8 cubic inches / 242.6 cc
Bore x Stroke
72 x 59.6 mm
Compression Ratio
10.3:1
Max Horsepower
17 HP / 12.4 kW @ 7000 rpm
Engine Management System
1x 32mmDell’Ortocarburetor
Cooling System
Air cooled
Performance
Top Speed
85 mph
*n/a – information not provided by manufacturer
Transmission
Gearbox
5 Speed
Final Drive
Chain
Electrical & Electronics System
Starter
kick
Chassis & Suspension
Front Suspension
Oil damper Ceriant telescopic fork
Rear Suspension
Pivoted fork and Betor dampers 3-way adjustment
Wheels & Brakes
Front Tire Size
3.25 -19
Rear Tire Size
4.00 -18
Front Brakes
Single disc
Rear Brakes
Drum
Dimension & Weights
Fuel Tank Capacity
2.7 US gallons / 10.5 L
Wet (kerb/curb) Weight
294.4 lbs / 129 kg
Dry Weight
114 kg / 252 lbs
Features
2-stroke single cylinder engine
Road version (SST) and trail version (SX)
Available in 125, 175, 250, and 350cc categories
New medium-sized 2-stroker with increased noise and air pollution control challenges
Italian VAT schedules penalize over 350cc categories
Matt black exhausts on both SST and SX models
Low-slung exhaust on SST road version
264mm Brembo disc brake on SST
21″ front wheel on SX model
Separate oil tank with cleverly positioned filler cap
Riding position is upright with handlebars of just the right width and distance from the seat
Fine foot controls
Up and over exhaust runs to the left of the fuel tank and seat
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*We strive to provide the most comprehensive and accurate specifications possible. However, certain details may not be available if the manufacturer did not disclose them or if the information is no longer publicly accessible. If you find any discrepancy with any data on this site, please feel free to let us know at contact@throttlecraze.com
