Hercules K 180 Military - 1991 Specifications and Reviews

The 1991 Hercules K 180 Military is a lightweight, utilitarian two-stroke motorcycle designed for practical riders seeking economical commuting and off-road capability. Its modest 178cc single-cylinder engine delivers 17 horsepower and a top speed of 110 km/h, prioritizing reliability and fuel efficiency over performance. Best known for its rugged construction and versatile character, it suits budget-conscious riders and military applications requiring dependable, low-maintenance transportation.

1991
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General information

CategoryUnspecified category
Year1991
ModelHercules K 180 Military

Engine and Transmission Specifications

Transmission type,final driveChain
Gearbox5-speed
Cooling systemAir
Fuel controlPort control
Bore x stroke61.0 x 61.0 mm (2.4 x 2.4 inches)
Compression10.8:1
Top speed110.0 km/h (68.4 mph)
Power17.00
Engine typeSingle cylinder, two-stroke
Capacity:178.00 ccm (10.86 cubic inches)

Brakes, suspension, Frame and wheels

Rear brakesExpanding brake
Front brakesExpanding brake
Rear tyre dimensions3.25-18
Front tyre dimensions3.25-18
 
 

Physical measures and capacities

Fuel capacity15.00 litres (3.96 gallons)
Weight incl. oil, gas, etc135.0 kg (297.6 pounds)
 
 

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

17 hp
Peak Power
68.4 mph
Top Speed

Best For

Track10%
City45%
Cornering40%
Daily Riding40%
Touring30%
Passenger20%

Rider Profile

Best ForThis lightweight, low-powered two-stroke single is an easy, forgiving machine well-suited to novice or utilitarian riders rather than seasoned speed enthusiasts.
PurposeOriginally built as a military utility motorcycle, it is best suited to basic transport, light off-road use, and simple point-to-point riding rather than performance or long-distance touring.
Rider FitAt 135 kg and with a simple upright military-style layout, it is light and easy to manage physically, requiring little strength or effort to handle at low speeds.
CharacterIt has a rugged, no-frills, functional character typical of old-school military and utility bikes, prioritizing simplicity and durability over speed or comfort.
Not Ideal ForIt is not suited for riders seeking high speed, long-distance touring comfort, or passenger carrying capability.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Reviews

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