27" wheel Lightweight fender braces as listed in the 1975 Dealer parts catalog:
Front:
52 927 (5510) Cadmium plated, use with fork having fender brace lug
52 928 (5511) Cadmium plated, use with forged fork
Rear:
52 924 (5548) Cadmium plated (also used on 26") [I believe two of these are used on EF bikes]
52 930 (5570) Cadmium plated Sports Tourer and Super Sport Upper
52 931 (5571) Cadmium plated Sports Tourer and Super Sport Lower
Note that these braces were listed under the same part numbers as being chrome plated in catalogs prior to '69, and the Ladies' Super Sport came standard with chrome braced fenders from 1966 through '71.