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1924
SUNBEAMS
Model Range
A much-revised range of motorcycles was introduced, along with model numbers, which were to to be used by Sunbeam for the remainder of their production at Wolverhampton.

The new 347cc side-valve motorcycle was advertised in touring and sports versions, whilst the 'square'-stroke 499cc engine was reduced to two models  - the Standard and the 'Light Solo' versions. The latter model continued to use the Longstroke's cycle parts.

A new 'Model 4 Deluxe' (599cc) motorcycle was added to the range. It took its engine from the existing 4 h.p. model,  fitted into the 3 h.p. Standard model's frame. The 1923 4 h.p. model itself continued in production as the Model 7. Aimed at side-car work it was to be the last flat tank motorcycle to remain in production - still available in 1932 long after 'saddle tank' motorcycles had emerged.

Over-head valve (OHV) machines were introduced in 350cc and 500cc capacities. Both a 'parallel' and a 'sprint' framed version were available for each. The 350cc models were designated Models 8 and 10 respectively; and the 500cc models designated Models 9 and 11 respectively.

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

Cycle parts
[text to be added]

Engine and gearbox
The 4 hp model gained a four-speed constant mesh 'rack and pinion' gearbox; an up-grade intended for the 8 h.p. v-twin.

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

 

 

T H E   Y E A R ' S   M O D E L S :  1 9 2 4  
Model 1: 347cc side-valve - no photo  
Model 2: 347cc side-valve - no photo  
Model 3: 499cc side-valve (3 h.p. Standard) - no photo  
Model 4 Deluxe: 599cc side-valve - no photo  
Model 5 Light Solo: 499cc side-valve - no photo

 

 
Model 6 Longstroke: 492cc side-valve

 

 
Model 7: 599cc side-valve - no photo  
'Parallel' Model 8: 347cc OHV - no photo  
'Parallel' Model 9: 493cc OHV - no photo  
Model 10 Sprint: 347cc OHV - no photo  
Model 11 Sprint: 493 OHV  - no photo

 

 
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