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  1. #1
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    Which deralierr?

    I know I misspelled it and I'm too lazy to look up the right spelling.

    I am debating whether to replace my Deore LX F/D to an XT or my Deore XT R/D to an XTR.

    Eventually I'm going to do both but right now only one.

    Would you replace the more often used rear or the desperately in need of upgrade front?

  2. #2
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    I wouldn't replace either one but if I had to choice, the most used and the one that is the most complicated, the rear. The front derailleur is very simple, I'd let it go.

  3. #3
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    I guess then that begs the question of why wouldn't you replace it?

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    I would not replace either derailleur, either. There is not significant performance difference between them. At this level the shifter has much more effect than the mechs.

    Wait until the derailleurs wear out or break (which the front will never do) before replacing. Then get the model that is best value.
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  5. #5
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    Quote Originally Posted by shiggy View Post
    I would not replace either derailleur, either. There is not significant performance difference between them. At this level the shifter has much more effect than the mechs.

    Wait until the derailleurs wear out or break (which the front will never do) before replacing. Then get the model that is best value.
    I have already upgraded to XTR shifters, have a high end tubeless wheelset, carbon everything, King headset... not sure where else to go outside of crank, fd, rd, and saddle. I alrady have the XTR brakes on order so that's done too.

  6. #6
    In search of moar cowbell dminor's Avatar
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    Quote Originally Posted by Vicelord View Post
    I guess then that begs the question of why wouldn't you replace it?
    If it begs the question, why are you asking?

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    Quote Originally Posted by Vicelord View Post
    I have already upgraded to XTR shifters, have a high end tubeless wheelset, carbon everything, King headset... not sure where else to go outside of crank, fd, rd, and saddle. I alrady have the XTR brakes on order so that's done too.
    Upgrading just makes the bike and your wallet lighter. At this point the weight difference is small.
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  8. #8
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    Quote Originally Posted by shiggy View Post
    Upgrading just makes the bike and your wallet lighter. At this point the weight difference is small.
    I'm aware that it's small. I'm sort of a weight weenie with my mtb, and you can't tell me the XTR stuff doesn't perform much better than anything else Shimano makes for mtbs.

  9. #9
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    XTR shifters are bad ass for sure, but don't neglect the shift cables and housing either. They can make all the difference in the world when it comes to drivetrain performance.

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    Quote Originally Posted by Vicelord View Post
    I'm aware that it's small. I'm sort of a weight weenie with my mtb, and you can't tell me the XTR stuff doesn't perform much better than anything else Shimano makes for mtbs.
    Actually, I can. When used with the same shifter, cassette, chain and cables, the performance difference between an XT and XTR derailleur is not detectable.
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  11. #11
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    ViceLord, I support your purchase of the XTR and XT derailers. Please continue to support the economy.
    Roccobike BF Official Thread Terminator

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    Pint-Sized Gnar Shredder Zephyr11's Avatar
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    If you have that much money to blow, there are a few other upgrades that are actually useful. What fork are you currently using? What wheels? What kind of frame is it? And geez, if you still have that much money burning a whole in your pocket, I could use a Fox 831 and an F120. And a set or two of I9s.

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    Quote Originally Posted by Zephyr11 View Post
    If you have that much money to blow, there are a few other upgrades that are actually useful. What fork are you currently using? What wheels? What kind of frame is it? And geez, if you still have that much money burning a whole in your pocket, I could use a Fox 831 and an F120. And a set or two of I9s.
    Lol! Scandium kona frame, fox vanilla r fork, easton tubeless wheelset, yup. Cassette and chain are garbage i didnt think of those.

  14. #14
    Pint-Sized Gnar Shredder Zephyr11's Avatar
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    Quote Originally Posted by Vicelord View Post
    Lol! Scandium kona frame, fox vanilla r fork, easton tubeless wheelset, yup. Cassette and chain are garbage i didnt think of those.
    From someone who wasted money going from a Hone crank to an XTR because it was half a pound less and I was stupid, you notice absolutely no difference swapping the crank (in my defense, I bought the XTR cheap at Veloswap). The only good part is I was able to put the crank and middle ring from the Hone on my DJ.
    Last edited by Zephyr11; 12-24-10 at 10:49 AM.

  15. #15
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    Quote Originally Posted by Zephyr11 View Post
    From someone who wasted money going from a Hone crank to an XTR because it was half a pound less and I was stupid, you notice absolutely no difference swapping the crank (in my defense, I bought the XTR cheap at Veloswap). The only good part is I was able to put the crank and middle ring from the Hone on my DJ.
    I hear ya, but the crank is part of a 10-speed conversion that will eventually happen, that is when I get all the parts together.

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    Quote Originally Posted by Vicelord View Post
    I hear ya, but the crank is part of a 10-speed conversion that will eventually happen, that is when I get all the parts together.
    Then you have even less reason to change the derailleurs now. 9-sp derailleurs are not compatible with 10-sp shifters. You will need to change the rear derailleur, shifter, cassette, and chain all at once. You may be able to keep the crank and rings.
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    Quote Originally Posted by Vicelord View Post
    Lol! Scandium kona frame, fox vanilla r fork, easton tubeless wheelset, yup. Cassette and chain are garbage i didnt think of those.
    You're worried about derailleur weights and you're running a coil fork?

  18. #18
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    Quote Originally Posted by never View Post
    You're worried about derailleur weights and you're running a coil fork?
    it's all in steps man, all in steps. I am getting the cheaper stuff done first.

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    Quote Originally Posted by Vicelord View Post
    it's all in steps man, all in steps. I am getting the cheaper stuff done first.
    Not cheap to buy new 9-speed parts if you are going to switch (notice I did not say upgrade) to 10-speed any time soon.
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  20. #20
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    Gotta agree with everyone else

    Don't replace either if you don't need to. I was told (on this forum) that the difference in performance between XT and XTR rear derailleurs isn't nearly as large as the difference in price. And replacing a front derailleur when your current one isn't broken seems completely pointless. Save your money and replace the forks or rear shock (if you have it). They usually wear much sooner than the derailleurs.

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