This DID Chain is designed to fit model years Yamaha FS1 E 1971 1972 1973 1974 1975 1976. D.I.D. Motorcycle Non O-Ring Drive Chain Black 420 D 96 Clip Link Yamaha FS1 E 1971 - 1976. Model: FS1 E. “DIRECT” gives you amazing throttle response by preventing pins form being flexed during acceleration and deceleration.
