rear hub collar BSA A7/10, B31/32/33/34, A65 and B40 model

Description

rear hub collar BSA

Swinging arm A7 and A10 models circa 1954-55.
Swinging arm B31, B33, B32 and B34 + rigid frame B32 and B34 models circa 1954-55.
B40 War Department models + A65 Lightning models circa 1965.
Gold Star DB34 swinging arm models circa 1949-58.