Shimano 11-speed freehub fitted to CERO ARD23 disc wheel. I am trying to identify the freehub fitted to this wheel, it has 1903 marked on one end.
I wish to replace it with a 12-speed Microspline freehub but need to know the exact make and model to ensure nthat it will fit.
Contact CERO or your dealer with your wheel's serial number. The 1903 is a date code. You likely need a 12-speed HG freehub, not Microspline, for road cassettes. They will confirm the exact part for your hub.
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