1. Irbit State Motorcycle MuseumIrbit IMZ-Ural is a Russian maker of heavy sidecar motorcycles. In 1940, the Soviet Union acquired the design and production techniques for BMW R71 motorcycles and sidecars.The first M-72 model was finished in 1941. Originally, factories were to be located in Moscow, Leningrad , and Kharkov, but due to the approach of Nazi German troops, the Moscow facilities were moved to Irbit, and the Leningrad and Kharkov facilities to Gorkiy . Plans for the M-72 were later sold to the Nanchang Aircraft Manufacturing Corporation, a Chinese industrial firm, to build the Chang Jiang. From Wikipedia, the free encyclopedia.