THIS IS THE LEFT SIDE CHAIN ADJUSTER FOR ALL THE CT90'S THIS WILL ALSO WORK ON ALL THE OLD HONDA'S THAT HAD TWO NUTS ON THE LEFT SIDE OF THE AXIL BOLT. fits: Honda C70 1980, 1981, 1982, 1983 Honda C70K1 1972 Honda C70M 1971 Honda CA100 1963 Honda CA102 1963 Honda CA105T 1963 Honda CA110 1963 Honda CA200 1964 Honda CM91 1966 Honda CT200 1964 Honda CT90 1966, 1976, 1977, 1978, 1979 Honda CT90K1 1969 Honda CT90K2 1970 Honda CT90K3 1971 Honda CT90K4 1972 Honda CT90K5 1974 Honda CT90K6 1975 Honda S65 1965 37G @ _6MM NUT 1/22K (B6Z)THIS WILL FIT ON LOTS OF HONDA APPLICATIONS. LIKE EXHAUST STUDS-CARB STUDS-LEVER BOLTS NUT B6Z @ _ *OEM_HONDA 6MM_LOCK_WASHER 1/20M (B91Z) B91Z @ *6MM_FLAT_WASHERS OEM_HONDA 94101-06800 1/22A (B61K) (359M)THESE ARE OEM HONDA WASHERS , BUT THEY HAVE A GOLD TINT TO THEM. B61K (359M)