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  1. #1
    road siklista dexmax's Avatar
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    skipping chain on my middle chainring..

    I am using a Deore LX crank with a shimano IG chain.

    It performs ok when I'm not pushing hard on the crank. But when I'm in a rough terrain, and when I push it hard, the chain skips. This only happens when i'm on my middle chainring.. And I only noticed it skipping when my right[leg/foot] is in the downward stroke.

    In todays ride, it skipped 4-5 times.

    skip = when pedalling, it[crank] suddenly looses resistance, about 45-60 deg rev.

    I nearly fell to my right side the last time this happend as I hammered.

    Please help..
    Invest yourself in everything you do. There is fun in being serious.
    LETS GO BIKING!!!

  2. #2
    Senior Member oldillini's Avatar
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    I assume you have check chain length.

    Had this happen with an old, stretched chain. Since I tend to use middle ring most, I too noticed it when on it and especially when getting on the pedals.
    [SIGPIC][/SIGPIC]

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  3. #3
    The Flying Scot chewa's Avatar
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    Aug 2001
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    Sounds like wear and tear on the middle ring/chain to me too.
    plus je vois les hommes, plus j'admire les chiens

    1985 Sandy Gilchrist-Colin Laing built 531c Audax/fast tourer.
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  4. #4
    Donating member Richard D's Avatar
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    Shimano chainrings have a reputation for being extremely smooth shifting but quite quick wearing. You might get away with just a new chain but it does sound like a new ring might be in order.
    Currently riding an MTB with a split personality - commuting, touring, riding for the sake of riding, on or off road :)

  5. #5
    Pain Cleanseth Feltup's Avatar
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    Are you sure it is slipping on the chainring and not on the cog? If the derailuer is to far to the left or right it can slip.
    It is better to lose clean then win dirty. Don't ride dirty

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