Motorcycle engines from France, Britain, Germany, Switzerland...
Notes:
Ajax engines are believed to have been built by AJS and supplied to Italian manufacturers such as Astoria.
See also:
Displacement Calculator
Mercury Engines fitted to Vaschetto, Mello and Tomaselli.
Morris engines were fitted to Hobart lightweights in 1922
Piazza and Ladetto & Blatto engines were used on a variety of Italian machines.
SMW, Bosch Stockdorfer Motorenwerke AG, Stockdorf, near Munich. This engine was used in the early 1920s by Bison, Linsner, SBD, and the wooden-framed Hirsch.
Whitley engines were supplied to Mills and Fullford in 1903-1904.
Sources: Sergio Scalarandi et al
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