Having produced motorcycles since 1910 Diamond would have to be one of the smaller and more obscure makes seen around at rallies today. They were just one of the many motorcycle manufacturers trying to eke out a living in the 1920s so to compete with the bigger companies they also had on offer kitset type machines to be supplied to your specifications of engine and gearbox combinations, as well as cast fittings, tubes, unbrazed and unassembled. For 1925 Diamond had 4 standard models from small Villiers powered 2 strokes to a 4.99hp four stroke single powered by a JAP engine. Are there any out there today?
Click on the motorcycle below to see the complete catalogue.
It is quite small at 560k but as a PDF you will need Adobe Acrobat Reader to read it.