Replace the cheaply made, worn-out factory swingarm bushings in your vintage Honda with a 2-piece set of brand-new bronze thrust bushings. Made in the USA from high quality bearing bronze, they are direct replacements for Honda OEM #52109-283-300. 

These bushings fit the following models:

1972-1974 CB350 Four (All Models)
1965-1974 CL450 / CB450 (All Models)
1971-1973 CB500 Four (All Models)
1974-1976 CB550K
1969-1975 CB750K