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  1. #1
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    Front derailleur adjustment question

    The bike I bought for my gf has a 3x10 front derailleur (XT) on a 2x10 crank.

    When I adjust the high limit screw enough to not rub in the big chain ring, it can't shift up to it from the small chain ring. It barely rubs but I'm wondering if there's something I'm missing in order to eliminate the rub entirely. I guess it could also be a function of spacing for a 2x10 vs 3x10 crank set...

  2. #2
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    Try rotating the derailleur so the front is pointed a little more outboard and make sure you only have 1-2 mm clearance between large chain ring and cage . What rear cog are you in when you get rub, are you cross chaining?

  3. #3
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    Are you using a 3X shifter as well?

  4. #4
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    Quote Originally Posted by Slash5 View Post
    Are you using a 3X shifter as well?
    Yes. The previous owner had it set so you could over shift the chain off lol

  5. #5
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    Quote Originally Posted by Fred Smedley View Post
    Try rotating the derailleur so the front is pointed a little more outboard and make sure you only have 1-2 mm clearance between large chain ring and cage . What rear cog are you in when you get rub, are you cross chaining?
    You mean like if you were looking down on the bike from above, rotate it counter clockwise ?

    and yeah its in big/big when it rubs, but I actually use that combo. It doesn't rub or look like its that crossed on my other 2x10 bike

    this one doesn't look crossed but just rubs a little

  6. #6
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    If you aren't already, try using the high shift of the shifter rather than the middle. That way you can usually overshift slightly to force the chain up on the ring against the limit but then let the shifter come back to the detent.

  7. #7
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    Quote Originally Posted by Alias530 View Post
    You mean like if you were looking down on the bike from above, rotate it counter clockwise ?

    and yeah its in big/big when it rubs, but I actually use that combo. It doesn't rub or look like its that crossed on my other 2x10 bike

    this one doesn't look crossed but just rubs a little
    If you were sitting on the bike rotate it clockwise which gives going up preference as the inside rail of the derailleur contacts the chain sooner and needs less travel to make the shift. That angle should help with your cross chaining noise also. Note, make that adjustment on the small ring and back a little cable tension off at the shifter so you are not fighting cable tension when you adjust.

  8. #8
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    Thanks guys

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