1934 BMW 398cc R4/4 Frame no. P2520 Engine no. 87965

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Lot 209
1934 BMW 398cc R4/4
Frame no. P2520 Engine no. 87965

Sold for CHF 11,500 (US$ 12,605) inc. premium
1934 BMW 398cc R4/4
Frame no. P2520
Engine no. 87965

Footnotes

  • Introduced in 1932 and intended to bridge the gap between the 'budget' R2 198cc single and the expensive twins, the R4 looked much like the former, whose channel-section steel frame and running gear it used almost unaltered. The 398cc overhead-valve engine featured enclosed valve gear and produced 12bhp, gaining an extra two horsepower in 1933 when the R4 was updated to Series 2 specification with revised styling and a four-speed gearbox. A new cylinder head, tidier engine casings, and changes to the toolbox and generator locations were introduced as the rugged R4 - a favourite with police forces and the German Army - progressed through to Series 5 before production ceased in 1936. It would be the largest single-cylinder BMW produced until the F650 in 1993.

    This R4/4 has seen little use since the completion of a total restoration. The vendor advises us that it is pleasant to ride, with ample torque and typically 'period' braking like all its sisters, plus a particularly pleasing thump from the exhaust. Note the rare 'compteur à boule' speedometer in the headlamp. The machine is offered with original German registration papers and Swiss form 13/20.

    BMW R4/4 398 cm3 1934
    Cadre n° P2520

    Introduite en 1932 et conçue pour combler l'écart entre l'économique R2 de 198 cm3 et les coûteuses twins, la R4 ressemblait beaucoup à la première dont le cadre en acier en tôle emboutie et les organes de transmission étaient pratiquement repris sans changement. Le moteur de 398 cm3 à soupapes en tête sous couvercle donnait 12 ch et 2 de plus en 1933 quand la R4 fut révisée selon les spécifications de la série 2 avec un style retouché et une boîte à quatre rapports. Une nouvelle culasse, des carters redessinés et un repositionnement du coffret à outils et de la dynamo furent introduits sur la rustique R4 – modèle adopté par la police et les forces armées allemandes – qui devint la série 5 avant la cessation de la production en 1936. Ce devait être la plus grosse monocylindre de BMW jusqu'à F650 de 1993.

    Cette R4/4 a été peu utilisée depuis la fin de sa restauration totale. Le vendeur précise qu'elle est agréable à conduire, avec du couple et un freinage typiquement « vintage » outre une sonorité grave d'échappement particulièrement plaisante. On notera le « compteur à boule » sur le phare. La machine est offerte avec ses papiers d'immatriculation allemands d'origine et son document suisse 13/20.

Saleroom notices

  • Please note that the frame number is P2520D and that the frame number suffix letter 'D' does not appear on the Swiss form 13/20 Please note there are no German registration papers with this machine. Veuillez noter que le numéro de châssis est P2520D et que la lettre 'D' suffixe du n° de châssis n'apparait pas sur le formulaire suisse 13/20 Veuillez noter qu'il n'y a pas de papiers d'immatriculation allemands avec cette machine.
Contacts
1934 BMW 398cc R4/4 Frame no. P2520 Engine no. 87965
1934 BMW 398cc R4/4 Frame no. P2520 Engine no. 87965
1934 BMW 398cc R4/4 Frame no. P2520 Engine no. 87965
1934 BMW 398cc R4/4 Frame no. P2520 Engine no. 87965
1934 BMW 398cc R4/4 Frame no. P2520 Engine no. 87965
Auction information

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Buyers' Premium and Charges

BUYER'S PREMIUM
Bonhams charge a buyer's premium. For this sale we will charge 15% +TVA of the hammer price.

Collection Notices

Notice Collections, transport and storage

All vehicles must be collected from Bonmont by 4pm Monday 21 September 2020.

In the absence of customer instructions received by Maëlle Fontaine [email protected] BY 10PM ON THE DAY OF SALE, your purchase will be automatically transported to our storage on Monday at your cost (CHF400 + TVA and CHF30 + TVA for the storage per motor car per day).

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