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LOT 166

c.1914 Zenith-JAP 5hp Gradua Motorcycle Combination Frame no. 3829 Engine no. 52005

Sold for €36,800 inc. premium
Lot 166

c.1914 Zenith-JAP 5hp Gradua Motorcycle Combination
Frame no. 3829 Engine no. 52005

c.1914 Zenith-JAP 5hp Gradua Motorcycle Combination
Frame no. 3829
Engine no. 52005

Footnotes

• Purchased in 1998

• Past award-winner at the VMCC's Banbury and Graham Walker Runs

• Pioneer Certificate

One of most evocative names in the history of motorcycling, Zenith is perhaps best remembered for its thundering JAP-engined v-twins that dominated Brooklands racing in the 1920s and on two occasions held the World Speed Record. The marque first came to prominence in the first decade of the 20th Century, when its machines adopted designer Fred Barnes' patented Gradua variable gearing system, which altered the gear ratio, within fixed limits, while maintaining constant drive belt tension. First introduced in 1908, the system proved so successful that several organisers banned Zenith machines from hill climbs, a state of affairs that resulted in the marque adopting its famous 'Barred' trademark. Zenith's first v-twin appeared in 1910 featuring a 500cc JAP engine and 'coffee grinder' handle operating the Gradua gear. A variety of proprietary engines was used during the 1920s and '30s before the outbreak of WW2 brought Zenith production to a halt, though a small number of v-twins was assembled after the war.

Powered by a 654cc JAP v-twin engine, this example is believed to be the only surviving Zenith Gradua with the countershaft gearbox mounted ahead of the engine, a feature introduced for the 1914 season. The current vendor purchased the Zenith at a UK auction in June 1998, at which time it was said to have been acquired in derelict condition and totally restored in the 1970s by the then owner. 'Kept in superlative condition ever since', it won the VMCC Banbury Run Premier Award six times in succession between 1975 and 1980, and took the Graham Walker Memorial Run Premier Award during the same period.

The 1998 catalogue description continues: 'Attention to detail in the presentation of this machine is remarkable, with correct numbers throughout for all components. Amongst the beguiling detailing, there is a correct toolbox, a full carbide lighting set, and the correct Zenith Barred transfer on the rear mudguard. Typical of the care with which this Zenith is presented is provision of correct period sparking plugs for use in static displays. With more modern plugs the Zenith has a good reserve of power, the vendor recalling that on the Banbury Run it was always capable of climbing the notorious Sunrising Hill under its own steam, carrying the rider, with his wife in the single-seater sidecar, when so many machines had to be helped up the acclivity.'

An exceptionally fine example of a Veteran-era Zenith is offered with the auction catalogue page; Pioneer Certificate No. 777; starting instructions; a substantial quantity of photocopied technical and historical literature; and an old-style UK green logbook (issued 1974) and UK V5 registration document. It should be noted that the date of first registration is recorded as 1920, this coinciding with the introduction of the Roads Act of 1920, which required local councils to register all vehicles at the time of licensing and to allocate a separate number to each. (Many vehicles, although in existence for several years in some cases, were only registered for the first time after the Act's passing).


• Acquise en 1998

• Récompensée aux Banbury et Graham Walker Runs du VMCC

• Certificat Pioneer

Équipée d'un moteur JAP V-twin de 654 cm3, cet exemplaire pourrait être la seule Zenith Gradua survivante dotée de la boîte de vitesses à arbre intermédiaire montée en avant du moteur, une caractéristiques introduite pour l'année 1914. Le vendeur actuel a acheté la Zenith dans une vente aux enchères britannique en juin 1998, date à laquelle il a été dit qu'elle avait été acquise à l'état d'épave avant d'être restaurée totalement dans les années 1970 par le propriétaire de l'époque. « Maintenue depuis en superbe état », elle a remportée six fois de suite de 1975 à 1980 le Trophée Banbury Run Premier du VMCC et le Trophée Graham Walker Memorial Run Premier au cours de la même période.

La description du catalogue de 1998 poursuit : « L'attention portée aux détails de présentation de cette machine est remarquable y compris les numéros corrects de tous les composants. Parmi les détails les plus appréciables on notera le coffret à outils du bon modèle, l'éclairage complet à carbure et le bon décalque Zenith Barred sur le garde-boue arrière. » Preuve du soin avec lequel cette Zenith est présentée, on note le jeu de bougies d'époque utilisées pour les expositions statiques. Avec des bougies plus modernes, la Zenith offre une bonne réserve de puissance, le vendeur rappelant que lors du Banbury Run, il a toujours été capable de gravir la célèbre rampe de Sunrising Hill avec le moteur seul en transportant le pilote et son épouse dans le side-car monoplace, là où de nombreuses machines devaient être assistées jusqu'au sommet.

Exceptionnelle machine de l'époque Vétérans, la Zenith est offerte avec la page du catalogue de la vente antérieure, le certificat Pioneer n° 777, les instructions de mise en marche, un dossier de littérature technique et historique en photocopies et un ancien log book vert britannique (datant de 1974) et un document d'immatriculation britannique V5. On notera que la date de première immatriculation relevée est 1920 coïncidant avec l'introduction au Royaume-Uni du Roads Act de cette même année qui imposait aux autorités locales d'enregistrer tous les véhicules à la date de leur immatriculation en attribuant un numéro propre à chaque engin. De nombreux véhicules alors en existence depuis des années pour certains d'entre eux n'ont donc été immatriculés pour la première fois qu'après l'application de cette loi.


It should be noted that these vehicles have either been on display in the museum or kept in store since Peter and Ulrike passed away. Their present mechanical condition is not known; accordingly, perspective bidders must satisfy themselves with regards to their condition, completeness, correctness, or otherwise prior to bidding.

On notera que depuis le décès de Peter et d'Ulrike ces véhicules ont été maintenus en exposition dans le musée ou entreposés. L'état actuel réel des mécaniques est inconnu et les éventuels acquéreurs devront s'assurer par eux-mêmes de la condition, de l'intégrité, de l'authenticité et autres points relatifs à la qualité des machines avant de porter leurs enchères.

Saleroom notices

It should be noted that this is the earliest surviving Zenith Gradua with the countershaft gearbox mounted ahead of the engine, not the only surviving example. There are only 13 pre-1915 examples known to exist to the Zenith marque specialist Tony Donnithorne, this example formerly the property of noted collector Mr Les Thomas. The frame number is 3892.

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