Sunbeam, along with Wolverhampton neighbours AJS Motor Cycles, had
missed the change-over to a 'saddle tank' design which occurred throughout
the industry in 1928. Consequently, its 1928 offerings were very much as
A 'bullnose' tank was used on the sporting Model 90, as in the previous
year. The smaller capacity Model 80 appear not to be listed for the year.
Engine and gearbox
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* Robert Cordon Champ, 1980, 'The Sunbeam Motorcycle'. Haynes Publishing.
* Robert Cordon Champ, 1989, 'The Illustrated History of Sunbeam Bicycles and
Motorcycles'. Haynes Publishing.