14 August. Friday 2026
Hercules K 125 Military - 1986 Specifications and Reviews
The 1986 Hercules K 125 Military is a lightweight custom cruiser designed for budget-conscious riders seeking practical urban mobility. Its modest 125cc single-cylinder engine delivers reliable everyday performance while keeping fuel consumption economical. Best known for rugged simplicity and low seat height, it appeals to commuters and newer riders valuing affordability and ease of handling.
General information | |
| Category | Custom / cruiser |
| Year | 1986 |
| 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 | 135.0 kg (297.6 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 | 94.0 km/h (58.4 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
58.4 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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