German Motorcycles

Hirsch 1923 350cc Bosch-Douglas (V2)

Note that this engine is fitted with a single carburettor. It is the same motorcycle, but the inlet tract has been modified since the first group of photographs were made.

Bretti Brothers

Based in Turin and established for decades, Bretti Brothers offers vintage and classic motorcycles from the early 1900s to the mid 20th century.

More information: Bretti Brothers

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Hirsch Motorcycles