1951 BSA 500cc M20 Engine No. ZM207475
Lot 432
c.1939 BSA 500cc M20 Frame no. WM20 5045 Engine no. ZM20 7475
€3,800 - 4,500
US$ 4,700 - 5,600

Lot Details
1951 BSA 500cc M20 Engine No. ZM207475
c.1939 BSA 500cc M20
Frame no. WM20 5045
Engine no. ZM20 7475
The creation of one of the British motorcycle industry's most prolific and talented designers - Val Page - BSA's new single-cylinder range debuted in 1937. Intended mainly for the sidecar man, the two biggest sidevalve models were the 496cc M20 and 596cc M21, both of which came with rigid frames, girder forks and four-speed, hand-change gearboxes. Ruggedly built and endowed with copious low-speed pulling power, both models were highly successful in their intended role as sidecar tugs and many M20s did sterling service as despatch riders' mounts with Allied forces during WW2. Indeed, this particular example's 'W' frame number prefix indicates that it was originally supplied for military use. There is no registration document with this Lot.

Footnotes

  • BSA 500 cm3 M20 c.1939
    Cadre n° WM20 5045
    Moteur n° ZM20 7475

    Créée par l'un des ingénieurs les plus prolifiques et talentueux de l'industrie motocycliste britannique – Val Page – la nouvelle gamme des monocylindres de BSA apparut en 1937. Conçue principalement pour le side-car, les deux types à soupapes latérales les plus forts étaient la M20 de 496 cm3 et la M21 de 596 cm3 deux modèles à cadre rigide, fourche à parallélogramme et boîte de vitesses à 4 rapports à sélecteur manuel. Solidement construites et dotées d'un fort couple à bas régime, ces deux machines furent très appréciées dans leur rôle prévu de moto d'attelage et de nombreuses M20 rendirent de grands services comme motos de liaison pendant la Seconde Guerre mondiale. En fait, le préfixe « W » (War) du numéro de cadre de cet exemplaire indique qu'elle fut initialement livrée aux armées. Ce lot ne possède pas de document d'immatriculation.
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