14 August. Friday 2026
Hercules K 125 Military - 1990 Specifications and Reviews
The 1990 Hercules K 125 Military is a lightweight single-cylinder motorcycle designed for military and utility purposes. With its modest 12.5 hp engine and sturdy 130 kg frame, it suits riders seeking reliable, economical transportation in challenging terrain. Best known for dependable performance and practical simplicity, this bike excels as a workhorse rather than a performance machine.
General information | |
| Category | Unspecified category |
| Year | 1990 |
| Model | Hercules K 125 Military |
| | |
Engine and Transmission Specifications | |
| Transmission typefinal drive | Chain |
| Gearbox | 5-speed |
| Cooling system | Air |
| Fuel control | Port control |
| Bore x stroke | 54.0 x 54.0 mm (2.1 x 2.1 inches) |
| Compression | 9.0:1 |
| Power | 12.50 |
| Stroke | 2 |
| Engine type | Single cylinder |
| Capacity: | 124.00 ccm (7.57 cubic inches) |
Physical measures and capacities | |
| Weight incl. oil, gas, etc | 130.0 kg (286.6 pounds) |
Hercules K 125 Military dimensions and frame | |
| Rear brakes | Expanding brake |
| Front brakes | Expanding brake |
| Rear tyre dimensions | 3.50-18 |
| Front tyre dimensions | 3.25-18 |
Speed and acceleration | |
| Top speed | 100.0 km/h (62.1 mph) |
| | |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Fuel capacity | 15.00 litres (3.96 gallons) |
Performance Profile & Rider Fit
12.5 hp
Peak Power
62.1 mph
Top Speed
Best For
Track5%
City40%
Cornering25%
Daily Riding30%
Touring15%
Passenger10%
Rider Profile
| Best For | This is a simple, low-powered machine well suited to beginners or riders comfortable with basic, no-frills motorcycles. |
| Purpose | Built as a military utility bike, it prioritizes light weight, simplicity, and mechanical robustness over speed or comfort. |
| Rider Fit | Its light 130 kg weight and low seat dynamics make it easy to manage and maneuver for riders of most sizes and strengths. |
| Character | A rugged, no-nonsense two-stroke single with modest performance, drum brakes, and utilitarian military-spec construction. |
| Not Ideal For | This is not the bike for riders wanting speed, highway touring capability, or modern comfort and braking performance. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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