BSA Clutch spring for Six spring clutches as fitted to BSA A,B and M Group models including :-
A7,A10 Swinging arm Pre-Unit twins (1954-59)
M20,M21 Series (1949-58)
B31,B32,B33,B34 (1949-60).
Made in England.
Length : 1-1/16″
Outer Diameter : 7/16″,5/16″
