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  1. #1
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    Replacing broken upper jockey wheel....

    My SRAM X9 10spd upper jockey wheel is broken.

    Can I use a old 9spd. SRAM or XT jockey wheel?

  2. #2
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    I'm pretty sure Shimano uses a different number of teeth. No reason to think the inside diameters are the same.
    Depends how old the X9 jockey wheel is. They changed in 2010. 9 speed and 10 speed are the same.
    9 speed 11.7515.038.000 10-11 X9 X7 Rear Derailleur Pulley Kit
    10 Speed 11.7515.038.000 10-11 X9 X7 Rear Derailleur Pulley Kit

  3. #3
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    As long as they didn't change the diameter of the bolt hole or overall thickness of the jockey by much (which you will be able to check by comparison). I am pretty sure you could at least use an older one as a temporary fix while you order up some replacements which are pretty cheap. After all the internal spacing and link lengths of the chains are the same regardless of 9/10 - SRAM / Shimano etc
    Jockeys are not under full load so I am sure you won't damage anything by trying. If the diameter is slightly different you may have to tweak the b screw a bit (or try the lower jockey in the upper position and put the non standard jockey in the lower position) if it doesn't work nothing lost but I am pretty sure it will be OK.

  4. #4
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    Quote Originally Posted by SimpleJon View Post
    while you order up some replacements which are pretty cheap.
    SRAM jockey wheels are not cheap. I broke a bottom pulley and was seriously considering buying a new X7 derailleur as a spare to steal the parts off because it wasn't much more money than just the pulleys. They were around $35.
    The older pulleys are a completely different design with two holes and a bolt and pin to mount.

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