Junak is a brand of Polish motorcycles, the only four-stroke models produced in Poland between World War II and the Revolutions of 1989. The name literally means "brave young man". Produced by Szczecińska Fabryka Motocykli (SFM) (en.: Szczecin Factory Motorcycles) in three variants: M07, M10 and B20.

Aug 6, 2024 · In the performance department, the 1960 Junak M10 had installed a 349cc four-stroke single-cylinder air-cooled engine that delivered 19 hp at 6,000 rpm and 27 Nm (20 lb-ft) torque at 3,800...

Double, cradle-type, welded throughout of tubing, provided with holders for side car mounting. Swinging arm sprung on telescopic elements with coil springs and oil damping. Wire type, with full width hubs made of light alloy, interchangeable (also with side-car wheel). Both wheels with quick-detachable spindles. Planning the Junak began in 1952.

Junak M10 is produced in 1960-65. Engine is Four stroke, single cylinder, OHV, displacement 349 cc / 21.3 cub. in. , produces power 14 kW / 19 hp @ 6000 rpm and 27.5 Nm / 2.8 kgf-m / 20.3 ft-lb @3800 rpm.

Sep 3, 2018 · The M10 features a 350cc 4 stroke single that produced 19 horsepower at 6,000 rpm. It has a 4 speed transmission and mounting points for a sidecar. A distinctive exhaust and loud valve train have led to it being called the “Polish Harley” in some circles.

In the same year, a new designation for the Junak M10 motorcycle was introduced. The SO3 engine underwent several significant changes - the compression ratio was raised from 6.8 to 7.0. the power increased, becoming 12.5 kW (17 km) 6000 rpm, and the torque increased to 27.5 Nm (28 kgm) at 3800 rpm.

Basic model - Junak M10 (after modernisation) The Junak design emerged from the Warsaw Motor Industry's Construction Bureau (BKPMot). The team was led by expert motorcycle constructors with experience from the pre-war National Engineering Works (PZInz), Jan Ignatowicz and Stefan Porazinski.

Junak M10 : Year : 1961 : Category : Classic : Rating : 3.2 See the detailed rating of design and look, engine performance, reliability, fun-factor, etc. Compare with any other bike.

Mar 20, 2014 · One of just 23 imported to the US in 1963, the Polish-made Junak M10 was a somewhat popular bike in continental Europe, though Americans aren’t very familiar with the marque. This specific example hasn’t even been broken in yet! Junak produced the only 4-stroke bikes in Poland for several decades.

Junak is a brand Polish motorcycles, the only four-stroke models produced in Poland between World War II and Revolution of 1989. The name literally means "brave young man". Produced by Szczecińska Fabryka Motocykli (SFM) (English: Szczecin Factory Motorcycles) in five variants: M07, M10, B20 , WB1 and WB3.