SHL M11 was Polish motorcycle 175 cc class, manufactured in 1961-1968 in SHL in

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History

SHL M11 was a development of M06T 150 cc motorcycle. Main change was bigger 173 cc engine S-32. The design was revised and improved. Visible difference was adding metal side panels, covering carburettor, battery and air filter. The 173 cc S-32 engine was developed in Poland, basing upon S-06 150 cc engine, which in turn was developed from German

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. A capacity was increased by increasing bore, and other changes were applied. The engine was produced by

Warszawska Fabryka Motocykli Warszawska Fabryka Motocykli ( en, Warsaw Motorcycle Factory), commonly known by its initials WFM, is a defunct Polish motorcycle manufacturer. The motorcycles were manufactured in a factory located at 25 Ulica Mińska in the Warsaw district o ...

(WFM) in Warsaw. Later an improved variant S-32U was introduced, with power increased by 1 hp. From 1967 there was a new model M11W produced, with new Polish-designed engine W-2A Wiatr, 174 cc capacity. Its power was increased by 2 hp, to 12 hp. W-2A engines were produced by Metal Works Dezamet in

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. In spite of its rather limited capacity, it was the second Polish motorcycle at that time, as regards to the capacity and power, after the

SFM Junak 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.: ''Szczeci ...

, and the first Polish motorcycle 175 cc class. Prototypes of the M11 were constructed in 1959. A production started in May 1961. From 1965 smaller 18 in wheels replaced 19 in wheels. From 1967 until July 1968, M11W model was produced, with W-2A Wiatr engine. Also a small series of rally variant M11R, with a telescopic fork was made. Nearly 180,000 were made, including 26,000 M11W. Most motorcycles were sold in Poland, but they were also exported, among others to the USA. In 1962 a licence were sold to Escorts Group in India, where they were produced until 2005 as Rajdoot Excel-T.

References

* Adam Zakrzewski, ''Auto-moto PRL: władcy dróg i poboczy'', Demart, Warszawa 2010, , p. 128-131 {{in lang, pl Motorcycles introduced in 1961 SHL motorcycles