Gritty Shimano freewheel - how to clean?- Mtbr.com
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  1. #1
    Birdman aka JMJ
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    Gritty Shimano freewheel - how to clean?

    Did a bit of riding this weekend (totally out of shapre, BTW). Trails had some muddy and sandy sections, and now my Shimano freewheel sounds pretty gritty.

    Do I need to remove, disassemble, and flush it or is there an easier way?

    Thanks much - JMJ

  2. #2
    www.justthebonnet.com
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    If you search the SS forum this has been answered. I like the advice of soaking the freewheel in synthetic oil to get the gunk out.

  3. #3
    King Pin
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    Wink

    Yep, you can just soak 'er in some Mobil 1 synthetic or something similar. I like to stick a screwdriver in the leetle "indent" in the center portion and spin it around....lotsa old lube and crap comes out, possibly indicating the Mobil 1 going "in"..?

  4. #4
    The name's Norm...
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    Hey Birdman, how do you like the Shimano freewheel?

    I've got a claw(20t) and Jenson has the Shimano 18t for $11. Have you had the claws? And which do you prefer? Thanks in advance!

  5. #5
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    Quote Originally Posted by Birdman
    Did a bit of riding this weekend (totally out of shapre, BTW). Trails had some muddy and sandy sections, and now my Shimano freewheel sounds pretty gritty.

    Do I need to remove, disassemble, and flush it or is there an easier way?

    Thanks much - JMJ
    I like a soak and scrub in the solvent tank, followed by working Phil Tenacious Oil into the frewheel until it runs silky smooth. Works on every FW I've tried, and all of my bikes use freewheels.

    --Shannon

  6. #6
    Birdman aka JMJ
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    Sorry - pretty limited experience so far.

    Quote Originally Posted by maSSpayne
    I've got a claw(20t) and Jenson has the Shimano 18t for $11. Have you had the claws? And which do you prefer? Thanks in advance!
    I just built up my SS in late December and have only had a few rides on it so far (not lazy, just sick as a dog). Anyway, the Shimano freewheel is okay, does what it's supposed to do. The anti-contamination performance is pretty lousy though. I've never had an XT freehub sound like this.

    I'd much prefer an ENO freewheel, but will have to wait for my birthday. I have no experience with the ACS Claws freewheel.

    BTW - I'm running a 34f x 17r.

    Thanks for the advice, all - JMJ

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