BSA 1921 Model A 2 cyl 770 cc sv

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 BSA  1921 model A   6/7 HP  770 cc V-twin   frame# 1661   engine # 1686


The Model A was BSA’s first V-twin, primarily intended as a sidecar machine. 
It was introduced in 1920 and remained in production for about 3 years. 
In 1922 a somewhat scaled up version was brought out, the 986 cc model F. 
The vintage BSA combo provided dependable, inexpensive transport for many thousands of  families through many years of production.
The 76x85 engine has the cylinders set at a 50 degree angle. 
The valves are interchangeable,with quickly adjustable tappets. 
The constant loss lubrication system employs a mechanical pump with an emergency hand pump. 
Primary and secondary tansmissiop is by chain. Both chains are enclosed in beautiful cast aluminium cases, with BSA’s own design of shock absorber on the engine shaft. Wheels are quickly detachable and interchangeable.  
The gearbox  is BSA’s own three speed design. 
The machine comes complete with pillion seat and acetylene lighting.

This very practial vintage touring BSA  is an older restoration.

BSA 1921 Model A 2 cyl 770 cc sv1
BSA 1921 Model A 2 cyl 770 cc sv1 BSA 1921 Model A 2 cyl 770 cc sv1
BSA 1921 Model A 2 cyl 770 cc sv1 BSA 1921 Model A 2 cyl 770 cc sv1
BSA 1921 Model A 2 cyl 770 cc sv1 BSA 1921 Model A 2 cyl 770 cc sv1
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