Race Face Vault Cassette Body Seal

Ring nut found in all DT SWISS Star Ratchet hubs for retaining drive side bearing in hub shell.

Aluminium spacer used on rear hub axles found between freehub and hubshell of DT SWISS star ratchet hubs (190 / 180 / 240 / 240s / 350 / 340 / FR / 440 / 540) 

Steel spacer used on rear hub axles found between freehub and hubshell of DT Swiss 3-pawl hubs (370) and wheels (1900 and 1800 series) or brands using DT Swiss 3-pawl hub internals (Giant, Syncros, etc)