IMZ-Ural
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IMZ - Irbitski Motozykletny Zavod (Ирби́тский мотоцикле́тный заво́д = ИМЗ) is a Russian maker of heavy motorcycles (especially with sidecars). 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 (nowadays St. Petersburg) and Kharkov but due to the approach of German troops, the Moscow facilities were moved to Irbit and the Leningrad facilities to Gorkiy (nowadays Nizhny Novgorod).
A similar model is the Soviet (now Ukrainian) Dnepr motorcycle. Both Ural and Dnepr motorcycles are known under the slang term Cossack motorcycle. Between 1973 and 1979 Ural was one of the makes marketed by SATRA in the United Kingdom and Australia as Cossack motorcycles. <ref>[1]RussianMotorcycles Cossack Motorcycles (Retrieved 30 November 2006)</ref>
Chang Jiang Motorworks, a Chinese motorcycle manufacturer, bought the Ural M-72 production line to build its CJ-750 (original designation Model 1957, M1).
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[edit] History
The origins of the IMZ-Ural are closely linked to developments in the Eastern Front of World War II. The Soviet Union was preparing for possible military action by the German Third Reich, led by Adolf Hitler, then the dictator of Nazi Germany. Joseph Stalin ordered the Soviet military to prepare in all possible areas, including the ground forces that would be defending the Soviet Union against the invading German panzer tanks, storm troopers, and German special forces. Mobility was especially stressed after Soviet Union had witnessed the effect of blitzkrieg on Poland.<ref name="ural">[2]Ural History (Retrieved 30 November 2006)</ref>
A meeting was held at the Soviet Defense Ministry with the topic of discussion of determining a model of motorcycles that would be the most suitable for the Red Army. The Red Army wanted to modernise their equipment after termination of military conflict with Finland. The motorcycles used so far had not worked satisfactorily, their technology was outdated and the manufacturing quality left much to desire. The official version reads that after long discussion the BMW R71 motorcycle was found to most closely match the requirements and 5 units were covertly purchased through some Swedish intermediaries in neutral Sweden and copied.
Soviet engineers in Moscow busily dismantled the 5 BMWs. They copied the BMW design in every detail and made moulds and dies to produce their own engines and gearboxes in Moscow. Everything about the bike was reversed engineered and early in 1941 the first trial samples of M-72 motorcycles were shown to Stalin and the decision was taken to produce them. (Incidentally, one of these original BMWs still survives and is on display in the factory museum. Harley-Davidson also copied the BMW design and delivered about 1,000 Harley-Davidson XA (Experimental Army) flat-twin shaft drive motorcycles to the US Army during World War II. Meanwhile in Japan, Riyushko was busy copying Harley-Davidson V-twins.<ref name="ural"/>
A more likely story is that the BMW factory supplied the construction drawings and casting moulds. As a result of the Molotov-von Ribbentrop Pact transfers of technology had taken place to support their Soviet "friends" in different areas. Soviet engineers toured German aircraft factories and brought back complete cannons as samples. The OPEL Kadett was given to the Soviets just prior to the war, however it only commenced series production towards the end of the war as the Moskvitch 400.
In 1941 BMW began series production of R75, and did not resume production of R71. Supplying the Soviets with this superseded model would have seemed a good idea at the time. This would also explain why the Soviets ended up making a copy of the Wehrmacht sidecar.
Soon a factory was set up in Moscow producing hundreds of Russian M-72 sidecar motorcycles. The Nazi Blitzkrieg was so fast and effective that Soviet strategists worried that the Moscow factory was within easy range of German bombers. The decision was made to move the motorcycle plant further east, out of bombing range and into the middle of the resource rich Ural mountain region. The site chosen was the small trading town of Irbit, located on the fringe of the vast Siberian steppes in the Ural mountains. Irbit had once been an important Trade and Fair centre in Russia before the Revolution of 1917.
The only substantial building in town was a brewery and it was soon converted into a R & D building to prepare for the construction of a massive new production complex to build the M-72 motorcycle. On October 25, 1942 the first batch of motorcycles went to the front and during WWII a total of 9799 M-72 motorcycles were delivered to the front for reconnaissance detachments and mobile troops.
After WWII, the Factory was further developed and in 1950 the 30,000th motorcycle was produced. Since then over 3.2 million motorcycles, mainly sidecar outfits, have been produced.
The history of the "URAL" had begun with the glory of helping to defeat the terror of Hitler's armies on the Russian and European battlefields. The "URAL" was built for the military only, up until the late 1950s when another plant in the Ukraine took over that job and the Irbit Motorcycle Works (IMZ) began to concentrate on making bikes for domestic consumption. The popularity of the outfits grew steadily with the Russian people and in the late 1950s the full production of the plant was turned over to non-military production. In 1957 the M-72 production lines were sold to the PRC (Peoples Republic of China).
The export history of URALs started in 1953, at first mainly to developing countries. Between 1973 and 1979 Dnepr was one of the makes marketed by SATRA in the United Kingdom and Australia as Cossack motorcycles. <ref>[3]RussianMotorcycles Cossack Motorcycles (Retrieved 30 November 2006)</ref>
URALs are a unique combination of price, classic styling and side-car, just like my "dad's or grandad's bike".
The main products of the plant today are the heavy duty URAL sidecar motorcycles designed for rough Russian roads, and the custom Wolf. There are a lot of places in Russia where only horses and URAL motorcycles can be used to transport gear to where you need it. URAL motorcycles are equipped with four-stroke air-cooled flat-twin engines, a four speed gear box with reverse gear, shaft drive, two disc dry clutch, spring shock absorbers and drum brakes. Although new solo models have been developed for western markets and watercooled engines have been available.
The motorcycles are mainly sold to the internal Russian market. They have also been exported to Australia, Britain, France, Netherlands, Belgium, Spain, Greece, Norway, Finland, Sweden, Germany, Egypt, Iran, South African Republic, Brazil, Uruguay, Paraguay, the United States and numerous other countries. The total number of sales since the factory was founded has been over 3.2 million.
[edit] UralMoto Today
IMZ-Ural is the only Russian manufacturer of large capacity motorcycles and one of few manufacturers of sidecar motorcycles in the world. IMZ-Ural, www.imz-ural.com, is a conglomerate of companies producing and selling classic motorcycles in both solo and sidecar combinations.
The plant was founded in 1941. In November 1992 it transformed into an open-end joint stock company "Uralmoto Joint Stock Company" a privatized entity owned 40% by management and employees through grant, 38% by auction with privatization vouchers (mostly management and employees also) and 22% retained by the government. In July 2000, the company was re-organised with the governments shares being redistributed to investors.
At the beginning of 1998 the business was bought by private Russian interests and it is no longer a State Company, bringing new ideas, new investments, new management, new production techniques, new design, technology and above all quality control of incoming, in-process and finished products. IMZ has been given a new lease of life, with new models and an engine that benefits the standards required by the sporting and leisure rider of modern times. Whilst the outward appearance of the engine is the same as before, quality control techniques have use of better alloying and casting, better engineering tolerances, better paint and chrome whilst retaining the advantage of continuity with the inherently balanced design of a horizontally opposed flat twin engine with roller bearings in a solid frame.
In 2000, the company was sold to three entrepeneurs and broken into 3 components with the power production facilities, and foundry and forge being sold off. They took that opportunity to reorganize the remaining factory. It was spread over many, many acres (hectares) because it had been such a major manufacturing plant making thousands of motorcycles per month. Many employees were let go, partly because there was no need to spend so much time moving parts from one almost empty building to another, and partly because some employees were stuck in the '50s mode of Russian manufacturer — they pretended to work and the company pretended to pay them.[citation needed] Now, like most motorcycle manufacturers, they source pre-made components in many cases — buying alternators from Nippon Denso, brakes from Brembo, handlebars from Italy, etc. The company still makes the frame, the engine, the transmission, the body parts and the wheels.
The 2003 USA model featured a newly designed crankshaft and a disc brake in front. The crankshaft had a longer stroke which bumped the engine up from 650cc to 750cc, a 15% increase in size. This also replaced weaknesses in the older 5-piece, press-fit crankshaft. The old crank was fine for the low-compression models made through the 90's, but it just did not hold up to the higher compression that it took to pass USA Environmental Protection Agency (EPA) and the higher speeds on the modern roads.[citation needed]
In 2005 they fixed another weak part, the alternator attachment. The alternator is gear-driven off of the camshaft. Adjusting the gear lash is critical for this type of system. The new design can be retrofitted to old machines and has a new coupling mechanism that allows for better alignment of the alternator shaft to the camshaft. In 2006 they are going to a Ducati electronic ignition, a floating disc brake on the road models. They are selling all they can make and have reportedly obtained additional financing to increase the production.
A Ural motorcycle and sidecar was used for by Mike Clear and Ed Warren in 2005 for 11 (Eleven) 2005 Pan-American Motorcycle Expedition
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