Primary chain, 110046, (1/2 inch x 5/16 inch; 0.5 inch x 0.305 inch) 74 pitch, Renolds A&S with joiner.Suit AJS Matchless Norton Triumph68P = P11A Ranger: 1968; N15CS 750: 1964;69P = ES2MkII: 1965/66;74P = 50: 1963; Dominator, 88SS: 1963/65;75P = Big 4, 16H, 18, ES2: 1946/48, 1952; 50: 1956/63.; 500T: 1948/53; Model 7: 1948/55; Dominator 88: 1953/64; Inter 40: 1948/51;76P = 16H, 18: 1948/54; ES2: 1954/58; 19S: 1956/58; Inter 30: 1946/51; Inter 40: 1954/55; Dominator 99: 1957; Dominator 650, 650 SS: 1963/64; Atlas 750: 1962/68;77P = 18: 1948/51, 1953; ES2: 1949/53; 19R: 1954/55; Dominator 77: 1957; Inter 30: 1954/55;(AR08B1)