The overhead-valve Model 9's frame and cycle parts, which had much in common with those of Sunbeam's larger side-valve models, evolved slowly. Sunbeam missed the industry's virtually wholesale switch from flat-tank to saddle-tank frames for the 1928 season, and a saddle-tank version of the 9 did not appear until September of that year. Changes to the Model 9's engine were confined mainly to its top-end. The early flat-tankers featured a straight-ahead exhaust port, a peculiarity which necessitated the adoption of a bifurcated down-tube. Later on in the 1920s Sunbeam followed the then-fashionable trend to twin-port 'heads before reverting to a single-port design in 1934. Pushrod enclosure had arrived by 1930 to be followed a couple of years later by partial enclosure of the rocker gear, while a cradle frame and Burman gearbox were new for 1936. This saddle-tank Model 9 Sports with single-port engine is reported as 'starting first kick'. An older restoration finished in the marque's traditional black/gold, it is presented in generally good condition and offered with old-style buff logbook, MoT to July 2004 and Swansea V5.
The overhead-valve Model 9's frame and cycle parts, which had much in common with those of Sunbeam's larger side-valve models, evolved slowly. Sunbeam missed the industry's virtually wholesale switch from flat-tank to saddle-tank frames for the 1928 season, and a saddle-tank version of the 9 did not appear until September of that year. Changes to the Model 9's engine were confined mainly to its top-end. The early flat-tankers featured a straight-ahead exhaust port, a peculiarity which necessitated the adoption of a bifurcated down-tube. Later on in the 1920s Sunbeam followed the then-fashionable trend to twin-port 'heads before reverting to a single-port design in 1934. Pushrod enclosure had arrived by 1930 to be followed a couple of years later by partial enclosure of the rocker gear, while a cradle frame and Burman gearbox were new for 1936. This saddle-tank Model 9 Sports with single-port engine is reported as 'starting first kick'. An older restoration finished in the marque's traditional black/gold, it is presented in generally good condition and offered with old-style buff logbook, MoT to July 2004 and Swansea V5.
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.jpg "Source: Christie's")
.jpg "Source: Christie's")
