Manufactured by Rautateollisuus Oy Pyrkijä of Turku from 1955 to 1964
The firm produced mopeds and a racing motorcycle.
Their mopeds were powered by with 50cc HMW engines. Many of these were sold through the OTK-osuusliikkeet co-op network branded as OTK.
In 1958 Pyrkijäbuilt a competition motorcycle for the Finnish TT fitted with a 49cc DKW model 802 engine. It achieved speeds in the vicinity of 135-140 km/h.
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