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1925
SUNBEAMS

 Model Range
There was no change from 1924's offering in what Robert Cordon Champ calls 'an impressive catalogue' from Sunbeam.

An experimental OHC machine was entered for the year's TT races but performed badly and was not developed and put into production.

Cycle parts
A drum brake, introduced for OHV machines the previous year, became standard across the range, even on the Model 7.

Engine and gearbox
[text to follow]

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

  

Model 1: 347cc side-valve

 

 

Model 2: 347cc side-valve

Model 3: 499cc side-valve

Model 4: 599cc side-valve

Model 5: 499cc side-valve

Model 6: 492cc side-valve 'Longstroke'

 

 

 

 

 

Model 7: 599cc side-valve

Model 8: 347cc OHV

Model 9: 493cc OHV

Model 10: 347cc OHV Sprint

Model 11: 493cc OHV Sprint

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