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  1. #1
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    Reputation: saruti's Avatar
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    chain too long with 40\42 cassette

    hi guys
    been riding with 1\10 setup
    36teeth front N\W
    11-42 (oneup) cassette

    I find that for using this setup, I need the chain to bee long.
    whae its on the 40 \42 teet at the back, its OK.
    but when using higher gears, like the 11teeth, that bring the chain to bee too free, with not enough tension.
    the problem with this is when riding down the hill. when you use the smallest gear at the cassette.
    what leads sometimes to the chain bounc out off the front chainring. (even with upper guide)

    is there a solution for that?

    thanks

  2. #2
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    Reputation: Junersun's Avatar
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    And you can't take more links out? How about a chainguide? What RD are you using?
    Current Bikes

    2015 Transition Patrol AL
    2016 YT Tues AL

  3. #3
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    Unlink the chain, run it around the chainring and the 42T gear but not through the derailleur. See where the two ends overlap then add 1 inch (2 links). Break the chain there and relink. If you have a rear suspension, check how much chain growth you get through the full travel. You may need an extra inch of chain if you have a lot of chain growth through the travel.

  4. #4
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    thanks
    but I know all this...
    still, I think its a big problem, especially if you go to 44T....

  5. #5
    Positively negative
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    This doesn't sound like a matter of chain length but rather derailer length/capacity.

  6. #6
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    BPN is correct, you are using the wrong length derailleur cage for the size rings and cassette you're using, simple as that. Assume it's either a Shimano GS or SRAM Mid cage, you should be running a long cage/SGS cage RD.

    Quote Originally Posted by big_papa_nuts View Post
    This doesn't sound like a matter of chain length but rather derailer length/capacity.
    One day your life will flash before your eyes, will it be worth watching??

  7. #7
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    A mid cage should work just fine with his set up. Focus on chain length.

    Quote Originally Posted by LyNx View Post
    BPN is correct, you are using the wrong length derailleur cage for the size rings and cassette you're using, simple as that. Assume it's either a Shimano GS or SRAM Mid cage, you should be running a long cage/SGS cage RD.

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