Fits : Shimano or SRAM HG freehub. You will need appropriate tools to remove and refit the cassette, such as a chain whip, cassette lockring tool, and a large wrench. Place the spacer onto the freehub first, followed by the cassette.
1.0mm Cassette Freehub spacer, for Shimano HG Freehub
OTOTEC 4Pcs 1.8mm Cassette Freehub Spacer 40.5x35mm Compatible with Shimano SRAM 8/9/10/11 Speed
2.5mm Cassette Freehub spacer, for Shimano SRAM
2.5mm Cassette Freehub spacer, for Shimano SRAM, 8/9/10 speed on 11 speed hub
1.85mm Cassette Freehub spacer, for Shimano SRAM, 8/9/10 speed on 11 speed hub
1.0mm Cassette Freehub spacer, for Shimano SRAM