1927 BMW 500cc R47  Frame no. 4798 Engine no. 34842

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Lot 254
1927 BMW 500cc R47
Frame no. 4798 Engine no. 34842

Sold for £ 21,850 (US$ 27,515) inc. premium
1927 BMW 500cc R47
Frame no. 4798
Engine no. 34842
Following the collapse of its aero engine business after WWI, BMW turned to other areas of manufacture, motorcycles among them. Its first two models, marketed as the Frink and Helios respectively, were failures, but a successful proprietary engine was supplied to other manufacturers, such as Victoria. Designed by Chief Engineer Max Friz and launched in 1923, the first motorcycle to be sold as a BMW - the R32 - featured a 493cc, twin-cylinder, sidevalve engine having horizontally opposed cylinders, and this 'flat-twin' layout would forever be associated with the marque. The marque's first sports machine, the R37, appeared in 1924. The R37 boasted an overhead-valve engine producing almost double the R32's power output - 16bhp, good enough for a top speed of more than 70mph - but was produced for little more than a year before being replaced by the improved R47, the latter featuring increased power (18bhp) and a driveshaft-mounted rear brake in place of the R37's block-and-pulley type. Its cycle parts were typically BMW, comprising a duplex loop frame and leaf-sprung trailing-link front fork. Top speed was in the region of 70mph. R47 production lasted for just two years, 1,720 machines being sold, and today this rare Vintage BMW is among the marque's most desirable and sought after machines of the period. The 597th example built, this R47 was restored in 1967 for its then owner by the well known Viennese BMW workshop, Spatny. Following the death of the owner, the machine was acquired by Professor Ehn (in 1977) and in 2007 was comprehensively mechanically overhauled for a second time, on this occasion by the Austro-Daimler restoration specialists Weinzettl in Gloggnitz. Only the installation of the electrical system remains to be carried out.
1927 BMW 500cc R47  Frame no. 4798 Engine no. 34842
1927 BMW 500cc R47  Frame no. 4798 Engine no. 34842
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Buyer's Premium Rates
27.5% on the first £2,500 of the hammer price;
25% of the hammer price of amounts in excess of £2,500 up to and including £300,000;
20% of the hammer price of amounts in excess of £300,000 up to and including £3,000,000;
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