BMW RS54 Replica
Lot 161
BMW 590cc RS54 Replica Racing Motorcycle
Sold for €19,550 (US$ 25,936) inc. premium
Auction Details
BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica BMW RS54 Replica
Lot Details
BMW 590cc RS54 Replica Racing Motorcycle
This beautiful BMW racer was built in 2011 by a BMW dealer specialising in the marque's older models. This team has raced their own-designed classic BMWs with some success (see Klassik Motorrad magazine, May 2008 edition); indeed, one built by this dealer won the Netherlands classic racing championship in 2010.

Built with all new parts, the highly tuned R69S engine incorporates an R69S crankshaft and pistons; Schleicher RO160 (Race Only) camshaft; specially made aluminium cylinders; special bearings; R69S cylinder heads modified for twin-plug ignition; 2kg flywheel (6.2kg standard) and a 3.0-litre sump. Overhauled original Dell'Orto SSI 29 race carburettors with adjustable float chambers supply the mixture, which exits via 38mm down-pipes into open megaphones. It is estimated that the engine produces in excess of 50bhp at the rear wheel. The four-speed gearbox incorporates all new bearings in a replacement case. The current final drive ratio is 31/9.

Newly fabricated using BMW factory drawings of the RS54, the frame is part-constructed of oval tubes and is powder coated in black. The front fork is to RS54 pattern, modified to accommodate a new replica Ceriani hub/4LS brake, while the rear hub was specially made to RS54 pattern, complete with left-side brake. The wheels were built up using flanged aluminium 18" rims, which are shod with Dunlop Racing tyres (KR825/KR125A front/rear). Other noteworthy features include a Hoske 32-litre fuel tank, new RS54-type seat, new Kröber rev counter, new Magura handlebar controls, new Bowden cables and numerous nickel/chromium-plated parts. This beautiful machine is presented in race-ready condition, its engine running well.

Footnotes

  • Cette superbe BMW de course a été assemblée en 2011 par un concessionnaire de la marque spécialiste des modèles anciens. Cette écurie a engagé en compétition des BMW classiques de sa propre conception avec quelques succès (voir le magazine Klassik Motorrad de mai 2008). Une de ces machines a même remporté le championnat « classique » néerlandais en 2010.

    Construite à partir de pièces neuves, le moteur R69 S très préparé possède un vilebrequin et des pistons de R69 S, un arbre à cames Schleicher RO160 (Race Only), des cylindres spéciaux en alliage léger, des roulements spéciaux, des culasses R69 S modifiées pour le double allumage, un volant de 2 kg (contre 6,2 kg pour le type standard) et un carter de trois litres. Le mélange est fourni par des carburateurs Dell'Orto SSI 29 à cuve réglable type compétition et les gaz sont expulsés par des tubulures de 38 mm débouchant dans des mégaphones à passage direct. La puissance est estimée à plus de 50 ch à la roue. La boîte de vitesses a été reconstruite à partir d'un carter de rechange et munie de roulements neufs. La réduction finale est de 31:9.

    Récemment fabriqué à partir des plans d'usine du type RS54, le cadre est en partie fait de tubes ovales émaillés noir. La fourche avant est du type RS54 modifié en fonction du montage d'un moyeu Ceriani et d'un frein 4LS, tandis que le moyeu arrière a été spécialement fabriqué selon le type RS54 associé au frein latéral monté à gauche. Les roues ont été fabriquées à partir de jantes en aluminium de 18 pouces chaussées de pneus Dunlop Racing (KR825/KR125A avant/arrière). Parmi les autres caractéristiques notables, citons un réservoir Hoske de 32 litres, une selle neuve type RS54, un compte-tours neuf Kröber, des poignées Magura et des câbles Bowden neufs et de nombreuses pièces nickelées-chromées. Cette magnifique moto est présentée prête à courir avec un moteur fonctionnant parfaitement.

Saleroom notices

  • The vendor advises us that upon a recent dyno testing the machine achieved the following: Power: 43 HP at the rear wheel at 6,000 RPM Torque: 50 Nm at the rear wheel at 6,000 RPM. The engine was tested no higher than 6,000 RPM. Once the engine has been run-in sufficiently the machine is expected to run well at 8,000-8,500 RPM with an estimated power of more than 50 HP (at the rear wheel).
Auction information

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  1. Ben Walker
    Specialist - Motorcycles
    Bonhams
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