K 103

1964 Hercules K 103 Technical Analysis & Specification Breakdown

Engineered by Hercules for the sport motorcycle segment, the 1964 Hercules K 103 relies on a 97 cc (5.9 cu in) air-cooled single cylinder, two-stroke powerplant. In factory specification, peak output is rated at 7 HP (5.1 kW) at 5,750 rpm, transferring power to the rear wheel through chain final drive. With a specific output of 72.2 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

Within MotoLibrary's Hercules archive, this model family spans 3 indexed model years from 1962 to 1964, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.