This excellent quality reproduction rear wheel axle chrome nut is made in the USA and replaces Honda part number 90306-268-000 (early part number CB727768). This nut fits 1961-1968 Honda CB72 Honda 250 Hawk, Honda CB77 Honda Super Hawk 305, 1965-1967 Honda CB450 K0 Honda Black Bomber, 1967 Honda CB450D Honda 450 Scrambler, 1968-1969 Honda CB450 K1, 1968-1969 Honda CL450 and later Honda CL72 Honda 250 Scrambler and later Honda CL77 Honda 305 Scrambler models. ATTENTION: Nuts were made from 1 inch hex bar which is slightly smaller than the original 26mm hex (26mm hex bar tool steel was nearly impossible to find and very expensive).