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  1. #1
    RoadBikeReview Member
    Join Date
    May 2017

    Servicing Shimano DA C50 wheels with FH-9000 hubs

    My DA C50 WH-9000 wheels are running a little rough and the rear is rattling so I suspect they're overdue for a service. I've started with the front wheel and got the axle out but was expecting to be able to remove the bearings with a magnet, however it appears these hubs use a ball retainer and the only way to remove it is by taking out the seal ring.

    Is this going to be an issue in terms of them being water tight? Any tips for the safe removal and replacement of the seal?
    Last edited by Benson1970; 06-12-2017 at 01:10 PM.

  2. #2
    'brifter' is a lame word.
    Reputation: cxwrench's Avatar
    Join Date
    Nov 2004
    The only thing that comes to mind is: 'Be careful'.

    Or...have spares on hand just in case. They do tend to bend fairly easily.
    I work for some bike racers
    I've got some bikes, some guns,
    and a bunch of skateboards

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