• It'll be fine. 8, 9 and 10sp freehub carriers are the same. Your '9 sp' Ventos will take any cassette of those three.

  • Is that right? I can only assume then that the previous owner of my eight speed cassette must have done the nine speed, drop the large cog, fit different spacers trick.

    Coincidently, was just about to replace the cassette. Does anyone know which nine speed cassettes had separate cogs all the way through the cassette?

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