THIS GOES IN BETWEEN THE FRONT WHEEL BEARINGS TO KEEP THE SIDE PRESSURE OFF THE BEARINGS WHEN THE AXLE NUT GET TIGHTENED FITS Honda QA50 1971 Honda QA50K1 1973 Honda QA50K2 1974 Honda QA50K3 1975 Honda Z50A 1969, 1976, 1977, 1978 Honda Z50AK1 1970 Honda Z50AK2 1971 Honda Z50AK3 1972 Honda Z50AK4 1973 Honda Z50AK5 1974 Honda Z50AK6 1975 Honda Z50R 1979, 1980, 1981, 1982, 1983, 1984, 1985 323H