There was no change from 1924's offering in what Robert Cordon Champ calls 'an impressive catalogue' from Sunbeam.
An experimental over-head camshaft machine was entered for the year's Senior and Side-car T.T. races but was not a great success, and development of the engine ceased. A handfull of 500cc OHC engines was produced along with just one 350 and a 600cc version for the T.T. The OHC engine was not put into production.
A front drum brake, introduced for OHV machines the previous year, became standard across the range, even on the Model 7.
During the twenties Sunbeam did very well in sprinting and hill-climb events due in the main to the work of George Dance who developed the firms' very fast 'Dance Specials'. These OHV 350 and 500cc competition machines were all but unbeatable, with Dance often winning everything on the day. He did dominated the field at both Brooklands and Pendine.
The Models 10 and 11 Sprint machines appeared in the 1925 catalogue but were discontinued because racing events on public roads had been prohibited after a fatal accident at the Kop Hill event that year.
Production of the Sprint was very limited.
The range for 1925 consisted of:
The 1926 catalogue remained the same as the previous year. Models 10 and 11 were discontinued mid-season.