Dynamo chain, 110038, 49 pitch, Renold's A&S, endless, Nominal 3/8" x 7/32" , 0.375" x 0.225". The original magneto and contact breaker chain fitted to AJS 16M 16MC 16CS 18 18C 18S 18CS 1949-56 dynamo; Matchless G3L G3LC G3LS G3LCS 1949-56 dynamo, G80C G80 G80S 1949-56 dynamo Original part number: - dynamo chain