VT#: 44-0554
zinc spacer has an outer diameter of 7/16" and an inner diameter of 5/16", with a 5/16" length. Brake disc spacers will adapt 1973-up FX, FL rear hubs to accepts discs for front fork use.
FX Super Glide® 1973-1984 rear hub
FL Electra Glide® 1973-1984 rear Hub
FXST Softail® 1984-UP
FLST Heritage Softail® 1984-UP