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Tooth Worn

  • 17-05-2013 9:27pm
    #1
    aFlabbyPanda
    Registered Users, Registered Users 2 Posts: 1,985 ✭✭✭


    Just cleaning my chain tonight and spotted some wear on the rear mech. Is this something I should replace ASAP or has it more life left it in yet? Is it something I can swap out myself?

    Pic available at the link below, you might need to zoom in to see the damage.

    https://docs.google.com/file/d/0B60uhqrOSHbhNVZOQzJiQ1o5MWc/edit?usp=sharing


Comments

  • #2
    wotdef
    Closed Accounts Posts: 156 ✭✭wotdef


    No, yes and yes.


  • #3
    IM0
    Closed Accounts Posts: 5,390 ✭✭✭IM0


    hard to tell with all the gime on it, clean your bike :mad:

    :pac:


  • #4
    letape
    Registered Users, Registered Users 2 Posts: 2,929 ✭✭✭letape


    wotdef wrote: »
    No, yes and yes.

    Agree with that! Very simple to change the jockey wheel, you don't even need to open the chain. Part is fairly cheap too.


  • #5
    aFlabbyPanda
    Registered Users, Registered Users 2 Posts: 1,985 ✭✭✭aFlabbyPanda


    IM0 wrote: »
    hard to tell with all the gime on it, clean your bike :mad:

    :pac:

    I was only just putting on the degreaser!


  • #6
    IM0
    Closed Accounts Posts: 5,390 ✭✭✭IM0


    looks fine to me, on superzoom :confused:

    wasnt quite expecting that level of zoom, I nearly fell over


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  • #7
    IM0
    Closed Accounts Posts: 5,390 ✭✭✭IM0


    BrianjG wrote: »
    I was only just putting on the degreaser!

    I think that needs replacing!


  • #8
    Keep_Her_Lit
    Registered Users, Registered Users 2 Posts: 725 ✭✭✭Keep_Her_Lit


    It doesn't look too bad. If the jockey wheels spin freely, still mesh cleanly with the chain and the gear indexing is OK, I wouldn't bother just yet.

    The jockey wheels on the rear mech are idlers (driven by the chain rather than driving the chain), so their condition is less critical than that of the chainrings.


  • #9
    aFlabbyPanda
    Registered Users, Registered Users 2 Posts: 1,985 ✭✭✭aFlabbyPanda


    cheers guys, will pop in to the LBS and pick on a set of wheels.


  • #10
    ThreeBlindMice
    Banned (with Prison Access) Posts: 135 ✭✭ThreeBlindMice


    Jockey wheels on a rear mechanism are just idlers, some early mechs didn't even have toothed guides. I would be more concerned about sprocket teeth wear and chain stretch before I would go about changing them.


  • #11
    TheBlaaMan
    Registered Users, Registered Users 2 Posts: 3,469 ✭✭✭TheBlaaMan


    letape wrote: »
    Agree with that! Very simple to change the jockey wheel, you don't even need to open the chain. Part is fairly cheap too.


    Same situation for me at the moment. Bad shifting in the middle sprockets seems to be a function of worn jockey wheels (tested via a swop out from another bike). For Shimano 105 a new entire mech is under €50 with CRC whereas replacement jockey wheels run to nearly half that

    Is there a good non-OEM replacment jockey wheel set for Shimano 10speed that folks would recommend? Above seems rather pricey......


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  • #12
    jimm
    Registered Users, Registered Users 2 Posts: 650 ✭✭✭jimm


    TheBlaaMan wrote: »
    Same situation for me at the moment. Bad shifting in the middle sprockets seems to be a function of worn jockey wheels (tested via a swop out from another bike). For Shimano 105 a new entire mech is under €50 with CRC whereas replacement jockey wheels run to nearly half that

    Is there a good non-OEM replacment jockey wheel set for Shimano 10speed that folks would recommend? Above seems rather pricey......

    I've used BBB RollerBoys in an Ultegra mech. Still ok after 6 months or more


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