1920's Harley Davidson Board Track Racer

Boyhood friends William S Harley and Arthur Davidson began experimenting with powered transport in the early 1900s, producing their first complete production motorcycle around 1903. Little more than a motorized bicycle, the first prototype Harley-Davidson had proved fragile, prompting a major redesign and the establishment of a reputation for ruggedness that endures to this day. Like many of their contemporaries, Harley-Davidson laid out their engine along De Dion's lines. A single-cylinder four-stroke displacing 24.74ci (405cc), the latter remained in production essentially unchanged until superseded by a 30.16ci (494cc) version in 1909. Of greater significance was the appearance that same year of the firm's first v-twin, though this would turn out to be a failure and was dropped at the year's end. The twin returned for 1911 in redesigned form boasting mechanically operated inlet valves (replacing the 'atmospheric' type inherited from the single) and 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 J. Periodically revised and updated, the Harley-Davidson F-head twin had gained a front brake, stronger fork and pumped lubrication by the time production ceased in 1929.

This wonderful Model represents a rare opportunity to acquire an original.
This is one of the models that was made for the "Time Travel Berlin" VR game where you can travel to 20's Berlin streets.
With this travel machine, you can move to the 20th century.