| MODEL | HERCULES K 103 S 1964 |
| Year | 1964 |
| Engine Type | Single cylinder, two-stroke |
| Displacement / Capacity | 97 cc / 5.92 cu in |
| Bore X Stroke | 48 x 54 mm / 1.9 x 2.1 in |
| Compression Ratio | — |
| Cooling System | Air |
| Max Power | 6.0 kW / 8.2 hp @ 6000 rpm |
| Max Torque | — |
| Ignition | — |
| Induction | Bing 22 mm carburettor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | — |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Single cradle |
| Front Suspension | — |
| Rear Suspension | Swingarm |
| Front Brakes | Expanding (drum) |
| Rear Brakes | Expanding (drum) |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | 99 kg / 218.3 lb |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 2.75-21 |
| Rear Tyre | 2.75-21 |
| FUEL SYSTEM | |
| Fuel Capacity | — |
| Fuel Consumption | — |
| Top Speed | 95 km/h / 59 mph |
Off-road flavoured K 103 variant with a 97 cc two-stroke single and tall 21 inch spoked wheels front and rear. It shares the 8.2 hp output of the GS but is aimed at rougher going.
