1928 Harley Davidson 1207cc model JD
Registration no. to be advised (see text)
Frame no. 28JD7791
Engine no. 28JD7791
•Believed to have been supplied new in New Zealand
•Imported c.2010
•Offered with a NOVA confirmation

1909 marked the appearance of Harley-Davidson's first v-twin, though it was not until the adoption of mechanically operated inlet valves in 1911 (replacing the 'atmospheric' type inherited from the single) that production really took off. Known by the sobriquet 'pocket valve', this 'F-head' (inlet-over-exhaust) engine - built in 61ci and 74ci capacities (1,000cc and 1,200cc respectively) - would remain in production for the next 20 years. The Harley single's transmission arrangements - direct drive by means of a leather belt - were continued at first on the twin, but the need to make better use of the engine's power characteristics, particularly for sidecar pulling, prompted the introduction of a two-speed rear hub for 1914, by which time chain drive and a proper clutch had been adopted. Later that same year a conventional, three-speed, sliding-gear transmission with 'step starter' was introduced on the top-of-the-range version of the twin which, with full electrical equipment, was listed from now on as the Model JD. Periodically revised and up-dated, the Model J had gained a front brake, stronger fork and pumped lubrication by the time production ceased in 1929.

We are told that this lovely model JD was supplied new in New Zealand to Roy Tomlin. In 1984 he sold it to the vendor's uncle. In 2010 it was sold to the vendor who imported it to the UK. Recommissioning was put on hold due to the demands of building of a light aeroplane, but was recommenced in 2023. Work has included fitting a new battery, condenser, and a new exhaust system supplied by Geloman, the renowned H-D specialist in Germany. The old rusted out (believed not original) exhaust is supplied. A video of the machine running in February of this year is available on request. It has not been ridden for many years, and further adjustments may possibly be required.

Until now the bike has not been registered in the UK, but a new V5C should be in place by the time of the sale. An old New Zealand registration document, other NZ paperwork, a dating certificate from the Antique Motorcycle Club of America (Europe), reproduction handbooks, and sundry spares including new reproduction footboard rubbers are supplied. The vendor advises us that the machine is fitted with sidecar gearing but he believes that a sidecar has never been fitted. He has also pointed out that the linkage for the parking brake is missing but that it isn't necessary for solo use. Separate keys are supplied for the ignition, lights, and toolbox. Prospective bidders should satisfy themselves as to the motorcycle's completeness and mechanical condition prior to bidding. Sold strictly as viewed.
Footnotes:
All lots are sold 'as is/where is' and Bidders must satisfy themselves as to the provenance, condition, age, completeness and originality prior to bidding.

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This Lot will be auctioned on Sunday 21 April starting at 11am GMT.