Ferodo BSA brake shoe linings BBS/2/1 with rivets new old stock please study the photos questions welcome 

These are listed as suiting the following BSA bikes 

Empire star, OHV standard competition 350cc 1937/38

B23 350cc 1938/40

Empire star 250cc 1937

All models 250cc 1935/46

All models OHV 150cc 1935/37

B31 350cc 1947/48

Please ensure yourself that these will suit your requirements