freehub

English

Etymology

free +‎ hub, from a trademark.

Noun

freehub (plural freehubs)

Shimano freehub

1. A type of bicycle hub incorporating a ratcheting mechanism, with a cassette, or set of sprockets, mounted onto a splined shaft of the hub to engage the chain.

   In many high-end and midrange bicycles, freehubs have replaced freewheel systems.

See also

• freewheel