Shimano type HG Road/ HG MTB, MicroSpline, or Sram type XD/XDR?
If you are unsure of which type of freehub you have, follow our below guides to work this out.
Our guides below will also show which type of cassettes fit each type of freehub and if you will need to use any spacers or not.
If you are unsure of which freehub you need, please follow our guide.
If you need any help understanding this confusing subject to help purchase a product, please feel free to contact us.