My bike is a Coppi Wing with a 7800 Dura Ace group. My cassette is a 10-speed CS 5700 for Tiagra. I have to replace my freehub. Will a Dura-Ace 9000-series freehub fit?

  • 1
    Seems unlikely. An 11 speed R9000 freehub will be a little longer than a 10 speed. Jul 28 '19 at 17:44
  • @Argenti, seems to make sense, but on bike.shimano.com/en-EU/product/component/duraace-9000/… it looks as if it can support 10 speed and 11 speed. Jul 28 '19 at 18:07
  • Do you want to replace just the freehub body, or the entire hub? Jul 28 '19 at 18:13
  • Not sure....when I go downhill fast w/o pedaling, I get a high-pitched sound. I was told that the freewheel needs to be replaced. Jul 28 '19 at 18:22
  • 1
    Can you be more specific? I'm pretty sure you don't mean freewheel, because those are 5-7 speed systems where the ratcheting mechanism is contained together with the cogs. A freehub body looks like the link at the end. You can't simply mount any freehub body to any hub. We need to know what your rear hub is. content.competitivecyclist.com/images/items/900/DTS/DTS000G/…
    – Weiwen Ng
    Jul 28 '19 at 20:02

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