1924
SUNBEAMS

The new 347cc side-valve motor cycle was available in touring and sports versions, whilst the short-stroke 499cc engine was reduced to two models - the Standard and the 'Light Solo' version, the latter using the Longstroke's cycle parts.

A new 'Model 4', 599cc motor cycle was added to the range. It took its engine from the existing 4½ hp Model,  fitted into the 3½ hp Model's frame. The 4½ hp Model itself continued in production as the Model 7. Aimed at side-car work it was to be the last flat tank motor cycle to remain in production - still available in 1932 long after 'saddle tank' motor cycles had emerged.

OHV machines were introduced in 350cc and 500cc capacities. Both a 'parallel' and a sprint framed version were available for each - for the 350cc model, designated Models 8 and 10 respectively; and for the 500cc model, designated Models 9 and 11 respectively.

The 8hp v-twin, JAP-engined motor cycle was no longer listed.

Cycle parts
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Engine and gearbox
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Sources:
* Robert Cordon Champ, 1980, 'The Sunbeam Motorcycle'. Haynes Publishing.
* Robert Cordon Champ, 1989, 'The Illustrated History of Sunbeam Bicycles and Motorcycles'. Haynes Publishing.