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MOTOREX Magazine 2021 120 EN

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REPORT CONTINUED Zschopau's winners (with video) Where's the speedometer? A masterpiece for offroad: the high-quality spring-shock system. On the brawny MZ GS 505, Manfred Jäger left higher-displacement bikes in his class behind in the dust. Dual Bilstein shocks (r.) ensured that a stage could still be completed even if one shock broke. Characteristic: the pneumatic exhaust power valve system located above the manifold and the kick starter. Harald Sturm (also known as "Wild Harald") rides from victory to victory. THE BRAWNIEST Jäger was the only racer to ride the powerful MZ Geländesport in the 500–750 cc class in the 1980s. Manfred began competing in the Six Days (a grueling international offroad race) in this size class in 1977. The 505 cc one-cylinder engine has a piston diameter of over 92 mm. A real steam hammer. It starts with a hearty, determined kick, continues with intense power development, and ends with the challenge of throttling back the engine in time for the next curve. The latter was a real problem for spinning down the heavy crankshaft. In response the designers built a petcock into the cylinder head to reduce combustion pressure. Peculiar but effective. This 1978 505 is the successful European Championship machine. Only six of the 505 series were ever built. THE WORLD CHAMP The East German team's most successful Six Days result in Poland, 1987: world champions in the Trophy, Junior and Club team rankings. As multiple European and East German champion, Harald Sturm is the team captain — everything had to be just so in 1987. After many conversations with Harald Sturm, Michael Raschemann managed to convince him that his now complete collection of 1987 MZ and Simson bikes is the perfect place for his MZ. Faithful companion: shop dog Mike has been assisting Bernd the mechanic for years and performs guard duty. ENGINE 1-cylinder, two-stroke, 505 cc, 48 hp at 7100 RPM, air-cooled. 1 BVF racing carburetor, intake control via secondary flow membrane, electronic magneto ignition TRANSMISSION 5-speed, dry multi-plate dog clutch SUSPENSION WEIGHT MZ telescopic fork (f.) and 2 gas-charged shocks (r.) 110 kg ENGINE 1-cylinder, two-stroke, 248 cc, 45 hp at 8200 RPM, air-cooled. 1 BVF racing carburetor, intake control via main flow membrane, pneumatic exhaust power valve system, contactless T-clip ignition TRANSMISSION 6-speed, dry multi-plate dog clutch SUSPENSION WEIGHT MZ telescopic fork (f.) and central shock system with 2 gas-charged shock absorbers (r.) 108 kg Harald Sturm (left, multiple European and East German champion) and Michael Raschemann with Barkas B 1000 van and MZ GT 250 in front of the former MZ production plant in Zschopau. REUNIFICATION SPELLS THE END CONTEST Win one of 10 books (in German language) hand-signed by René Zapf and Harald Sturm! To take part: Closing date: July 31, 2021 The fall of the Berlin Wall in the autumn of 1989, together with German reunification in October 1990, brought confusion to MZ and its racing department. Top riders were jumping at tempting opportunities to earn money in the "new Germany." The outlook for MZ was gloomy. Offroad motorcycle racing played only a subordinate role in the newly founded MZ GmbH. From today's perspective, it is remarkable how motorcycle builders from the East were able to make racing and engineering history under the most difficult circumstances. The motorcycles from Zschopau are history, but the fascination of MZ lives on. • For more information on the brand 14 MOTOREX MAGAZINE 120 I MAY 2021 15



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