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Chain wear after 7,000km

  • 12-01-2012 8:39am
    #1
    Seweryn
    Registered Users, Registered Users 2 Posts: 4,499 ✭✭✭


    Hi,

    My first chain on my first road bike (actually the components were transplanted into another frame) just passed 7,000km and the wear is not much above 0.5% (I measured it using the CC-3.2 Parktool chain wear indicator - the 0.75% does not fit into). Should I replace the chain already and what is the recommended wear value when a chain needs replacing?


Comments

  • #2
    Paul Kiernan
    Registered Users, Registered Users 2 Posts: 2,216 ✭✭✭Paul Kiernan


    Sheldon recommends changing it between 0.5% and 1% (i.e. between 1/16" stretch per foot and 1/8" per foot) so your 0.75% as a marker sounds about right.

    I'm having chain problems myself at the moment, changed chain and still having shifting problems, changed cassette and about to test it today.

    P.S. The cassette I'm selling on Cyclimg Adverts is NOT the old banjaxed cassette I just took off!


  • #3
    bcmf
    Closed Accounts Posts: 6,679 ✭✭✭bcmf


    Yeah I would.
    It will reduce wear on your cassette and chainrings. Dont bin it though. Keep it as a spare.


  • #4
    07Lapierre
    Registered Users, Registered Users 2 Posts: 8,310 ✭✭✭07Lapierre


    bcmf wrote: »
    Yeah I would.
    It will reduce wear on your cassette and chainrings. Dont bin it though. Keep it as a spare.

    Why keep it if its worn?


  • #5
    Beasty
    Administrators, Social & Fun Moderators, Sports Moderators Posts: 78,393 Admin ✭✭✭✭✭Beasty


    07Lapierre wrote: »
    Why keep it if its worn?
    I've got about a dozen that I'm keeping "just in case" - I'll probably end up selling them to bcmf;)


  • #6
    07Lapierre
    Registered Users, Registered Users 2 Posts: 8,310 ✭✭✭07Lapierre


    "just in case" of what?? :) i cant think of a reason why youd keep a worn chain?

    If your chain is worn, buy 2 new ones, and keep the second one as a spare no?


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  • #7
    Beasty
    Administrators, Social & Fun Moderators, Sports Moderators Posts: 78,393 Admin ✭✭✭✭✭Beasty


    07Lapierre wrote: »
    "just in case" of what?? :) i cant think of a reason why youd keep a worn chain?

    If your chain is worn, buy 2 new ones, and keep the second one as a spare no?
    ... just in case I ever run out of new ones (very unlikely, I admit) - I tend to change before really necessary and know there's a bit of wear left in most of my old ones if needed

    Alternatively someone like bcmf may well get many more kilometers out of them ...

    (think I binned the 2 that snapped on me last April though)


  • #8
    Leroy42
    Registered Users, Registered Users 2 Posts: 15,873 ✭✭✭✭Leroy42


    He got 7k out of this one, probably 18 to 24 months usage at least.

    Can pick up a new chain fairly handy, either 'net or LBS if really urgent.

    Why even bother with a spare. Let the shops hold the stock.


  • #9
    Seweryn
    Registered Users, Registered Users 2 Posts: 4,499 ✭✭✭Seweryn


    07Lapierre wrote: »
    "just in case" of what?? :) i cant think of a reason why youd keep a worn chain?
    I can think of one - to use it when you need to lock the cassete in position prior to undo the locking nut ;).


  • #10
    07Lapierre
    Registered Users, Registered Users 2 Posts: 8,310 ✭✭✭07Lapierre


    Leroy42 wrote: »
    He got 7k out of this one, probably 18 to 24 months usage at least.

    Can pick up a new chain fairly handy, either 'net or LBS if really urgent.

    Why even bother with a spare. Let the shops hold the stock.

    Cheaper if u buy more than one chain...more discount


  • #11
    07Lapierre
    Registered Users, Registered Users 2 Posts: 8,310 ✭✭✭07Lapierre


    Seweryn wrote: »
    I can think of one - to use it when you need to lock the cassete in position prior to undo the locking nut ;).

    What do u use your chain whip for? :)


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  • #12
    Seweryn
    Registered Users, Registered Users 2 Posts: 4,499 ✭✭✭Seweryn


    Leroy42 wrote: »
    He got 7k out of this one, probably 18 to 24 months usage at least.
    No, I actually started cycling in late March / April 2011 and clocked 7k already ;).

    I have a spare chain, as I bought it before I hit 2,000 km, as I expected it to get worn quicker. I am a bit surprised it lasted so long. But it was maintained very, very well, I have to say.


  • #13
    Seweryn
    Registered Users, Registered Users 2 Posts: 4,499 ✭✭✭Seweryn


    07Lapierre wrote: »
    What do u use your chain whip for? :)
    I do not have one ;).


  • #14
    07Lapierre
    Registered Users, Registered Users 2 Posts: 8,310 ✭✭✭07Lapierre


    Seweryn wrote: »
    I do not have one ;).

    Treat yourself!


  • #15
    bcmf
    Closed Accounts Posts: 6,679 ✭✭✭bcmf


    Well my point was that if you change/rotate the chain every 3,000 kms and use 3 chains in that rotation you should get a fairly longlife out of a cassette/chainrings.

    And since a chain doesnt take up too much space you never know when you will need a spare chain or a few links.

    Plus if you have a spare chain it can be used as justification for building a new bike.


  • #16
    rich.d.berry
    Registered Users, Registered Users 2 Posts: 517 ✭✭✭rich.d.berry


    07Lapierre wrote: »
    Why keep it if its worn?

    Make a chain whip from it.


  • #17
    sy
    Registered Users, Registered Users 2 Posts: 1,653 ✭✭✭sy


    How about a rocking chair. Can't imagine getting my chains that clean!


  • #18
    Dubba
    Registered Users, Registered Users 2 Posts: 895 ✭✭✭Dubba


    How do you know when to change a chain if you don't have a chain wear indicator tool?

    I just replaced a cassette and had issues with the chain alignment, skipping, etc.

    I fixed the problem after hours of fiddling :rolleyes:, then properly reading and following the advice in Park Tools Rear Derailler Adjustments web page:
    http://www.parktool.com/blog/repair-help/rear-derailler-adjustments-derailleur


  • #19
    Seweryn
    Registered Users, Registered Users 2 Posts: 4,499 ✭✭✭Seweryn


    Dubba wrote: »
    How do you know when to change a chain if you don't have a chain wear indicator tool?
    You can measure the stretch of the chain with an inch-scaled ruller.


  • #20
    fixie fox
    Closed Accounts Posts: 519 ✭✭✭fixie fox


    Buy a new bike - you'll get the chain free


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