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The 350cc OHV Model 10, introduced the previous year, is included within the season's catalogue but is phased out during the year.
Both the side-valve Lion and OHV Model 9 are available in 500cc and 600cc versions. The 500cc Lion is re-named the Model 6A, whilst the 600c Lion replaces the flat-tank Model 7 and is called the Model 7A. This is the final year that the flat-tank Model 7 is available from stock.
There is a return to the all-black, gold-lined petrol tank after the previous year's use of a chrome plated tank with black panels.
The rear mudguard acquires a hinge, and additional lower stay, to allow easy removal of the back wheel. Front and rear wheels are designed to be interchangeable, which requires a redesign of the front forks. The 'dog leg' fork is introduced on all models except the Model 10.
Engine and gearbox
The Lion engine is redesigned, with both the 500cc and 600cc now fitted with a detachable cylinder head, the side valves are enclosed within a protective box, and the exhaust pipe diameter is increased from 1½ inch to 1¾ inch.
A 4-speed gearbox is introduced. The push-rod clutch mechanism with its cast bridge is also replaced. A quick thread clutch mechanism is introduced on the left side side of the machine.
1932 Model List
STANDARD TOURING MODEL 10
COMPLETELY EQUIPPED WITH DYNAMO LIGHTING AND ELECTRIC HORN
ENGINE. Single cylinder two-port O.H.V. detachable non-detonating turbulent head. Enclosed rocker gear and push rods lubricated automatically. Tecalemit grease un system to rocker shafts. Double coil valve springs. tappet adjustment direct to stem of valve. Exhaust valve lifter operated by cable from handlebar. Sunbeam dry sump lubrication system for engine entirely self-contained with Oil reservoir in crankcase. Amal carburetter. Large exhaust pipes, with Sunbeam patent silencers.
TRANSMISSION. Front chain totally enclosed in Sunbeam patent Oil bath chain case. Rear chain protected by special chain guard. Sunbeam shock absorber on engine shaft. Sunbeam hand-operated clutch.
FRAME. Saddle tank frame with low riding position giving great control over the machine. Sunbeam adjustable handlebars and adjustable rubber-covered footrests. Accumulator carried on seat tube below saddle. Carrier with pannier tool bag in each side. mounted on strong platform.
Sources: sunbeamsidevalve.com, factory literature.