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  1. #1
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    Giant XC1 bearing service

    Noticed what feels like grit in my front wheels after a very wet and sandy ride. Would like to clean the bearings and re-grease but have no idea how I access them?

    I've looked online and can't find a service guide... If I can work out how to remove the black cap I can clean them out and get them smooth again (hopefully)

    Any guidance would be appreciated.

    Giant XC1 bearing service-wheel.jpg

  2. #2
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    I don't know what hubs those are, but my assumption is that those end-caps are retained by "O" rings and can be pulled straight off. First time removal might present some challenges at breaking loose. Finding an appropriate tool to grab the end-cap and remove it without damaging it is the tricky part. I have these Canon Plug pliers that work great or appropriate bench vice jaws. In a worse case scenario, you can wrap a rag around end-cap and use channel locks or other pliers to remove. This can be tricky to avoid damage, but with care, it's doable. If these end-caps are "O" ringed, be sure to apply a little grease on them for re-install and to facilitate an easier removal.

    Name:  Cannon Plug Pliers.JPG
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Size:  7.3 KB Giant XC1 bearing service-20190101_164805.jpg
    A bad day of cycling is better than a good day at work

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  3. #3
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    thanks for the reply, I managed to use a set of grips after wrapping the hub adaptors with electrical tape first. The outer came off easily however the disc side was stubborn and I marked the soft metal slightly I've wet and dried it so it's smooth - i'm hoping it wont be a problem! Will invest in a set of grips as you've suggested for next time as they have many uses.

    I've included pics of the gunk in the bearings after 6months and 4000km...

    Where I cycle is pretty harsh. Well worth cleaning as they were clunky and are super smooth now.

    Would like to do the rears but not sure where to start???

    Giant XC1 bearing service-img_7330.jpgGiant XC1 bearing service-img_7331.jpgGiant XC1 bearing service-img_7342.jpg

    Cleaned
    Giant XC1 bearing service-img_7333.jpgGiant XC1 bearing service-img_7334.jpgGiant XC1 bearing service-img_7340.jpg

  4. #4
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    To help keep bearing contaminates out of the bearings, after bearing service and the seal has been re-installed, I place some bearing grease over the top of the bearing seal and the bottom of the endcap for added bearing protection.

    Giant XC1 bearing service-20170122_162105.jpg Giant XC1 bearing service-20170831_165930.jpg
    A bad day of cycling is better than a good day at work

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  5. #5
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    You mentioned the rear hubs...they are no different than the front hubs, except that you have a freehub to remove. You might need to have a few tools to remove the cassette such as a cassette removal tool and a chainwhip. I can expand on this is you're interested. This is not a difficult process and you'll find that servicing the rear bearings are fundamentally the same as the fronts.
    A bad day of cycling is better than a good day at work

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  6. #6
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    thanks for the tip. I'll be sure to do that next time... I have a feeling i'm going to be doing this every couple of months... what are the rears like to do? Are they as easy? I have a chain whip and cassette tool but that's about it!

  7. #7
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    What freehub do you have? I'm assuming a Shimano styled freehub?

    Giant XC1 bearing service-20170818_193106.jpg

    Have you ever removed the freehub from the rear hub?
    A bad day of cycling is better than a good day at work

    Work Truck - Dassault Falcon 7X

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