Property of the late Warrick Blackwell, c.1972 MZ 250cc Grand Prix Racing Motorcycle Project

Frame no. 001/72 (see text) Engine no. 1/71 and 7010136

• Part of the Blackwell Collection for at least 30 years
• Semi-dismantled and incomplete
• Offered for restoration

Although the Zschopau marque established its reputation with the general public as purveyor of reliable, if somewhat unexciting, commuter machines, the East German concern was in the forefront of high-performance two-stroke development in the post-war years. Under the direction of engineer Walter Kaaden, MZ achieved some notable triumphs against the might of Japanese opposition in the 1960s, and although its Grand Prix effort eventually faded, the firm produced many highly successful ISDT machines in the 1960s and 1970s.

What would become Motorradwerk Zschopau (Zschopau Motorcycle Works) was founded in the old DKW factory in Saxony after WW2, although its first machines were marketed under the IFA brand name. That first machine was based on the pre-war DKW 125, and derivatives were soon being raced in the East German Championship. The pace of development quickened following Kaaden's arrival in 1952, for it was he who redesigned the engine to accept a rotary disc inlet valve and resonant exhaust system.

The machine offered here represents MZ's 250cc Grand Prix racer in its ultimate form. Introduced in 1955, the first 250 racer - effectively a doubled-up 125 - was air-cooled and fitted with a four-speed transmission. Maximum power was 25bhp at 8,000rpm. Water-cooling was adopted in 1962 on the RE250, boosting power to 48bhp at 11,000 revs. By 1970 a six-speed gearbox was standard, and with 50-53 horsepower on tap the RE250 was good for a top speed of 140mph. When the factory's racing effort folded in 1977, all the existing bikes and parts were sold off to privateers, who continued to race them for years afterwards.

This ex-works example comes with a file of history containing press cuttings, correspondence photographs, etc. MZ authority Manfred Woll has advised us that although the frame is of the type built from 1972 onwards, the frame number is not an original MZ stamping. Furthermore, the fuel tank is 1974-onwards while the gearbox dates from 1971. The radiator is modified and the expansion-chambers are of a later type. The fairing and seat may be replicas. Semi-dismantled and incomplete, the machine is sold strictly as viewed and prospective bidders must satisfy themselves as to its provenance, completeness, authenticity and engine capacity prior to bidding.
Key not required