In 1947, the production of a light motorcycle with a cylinder capacity of 125cc litre was launched at the National Automobile Works No. 2 in Warsaw. Referring to the pre-war tradition, it was given the name Sokół 125. This motorcycle was structurally similar to the SHL M04, equipped with the same SOI engine, but had a different single frame, welded from imported steel pipes. At the end of 1950, a decision was made to stop the production of this vehicle and to focus efforts on the quantitative and qualitative development of the M04 motorcycle.
Engine - Type SOI, spark ignition. Other data as for the SHL M04.
Electrical installation - Data as for the SHL M04.
Drive system - Data as for the SHL M04.
Support system - Data as for the SHL M04, with the following changes: Cradle frame, closed, single, welded from drawn steel tubes. Two ball bearings in the head tube. Front wheel suspension on a trapezoidal fork with a central coil spring. Fork elements made of pressed pressed metal. Rigid rear wheel suspension (without springs),
Braking and steering system - Data as in the SHL M04 motorcycle.
Body - Data as for the SHL M04 motorcycle, with the following additions: fuel filler with strainer and oil dipstick.
Dimensions - Wheelbase approx. 1300 mm. Length 2020 mm, width 690 mm, height 900 mm (unladen).
Weights - Data as for the SHL M04. Capacities - Data as in the SHL M04 motorcycle.
Operating data - Data as for the SHL M04.
Source: Polish History Archive