Anyone else ever have this happen to their x.9? -pics-- Mtbr.com
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  1. #1
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    Anyone else ever have this happen to their x.9? -pics-

    Yeah...the pics show all. i dunno wtf happened there. Is it worth spendin the extra cash for the x.0, is it stronger then the x.9? this aluminum alloy looks pretty cheap, i dunno. i was just riding along n all of a sudden i hear crack crack snap! and its tangled up in my wheel. let me know :mad2:
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  2. #2
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    Quote Originally Posted by acdcfan1283
    Yeah...the pics show all...
    Your pics are too blurry to "show all."

    You need to use your macro setting or take a longer shot at max resolution and crop.

    Break any cast aluminum piece and it looks grainy inside.
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  3. #3
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    Quote Originally Posted by shiggy
    Your pics are too blurry to "show all."

    You need to use your macro setting or take a longer shot at max resolution and crop.
    dude how hard is it to not see what happened? the aluminum snapped right in half. yeah im sorry its blurry but i dont have a good camera. i have a 2.1 megapixel camera. i dont know how u cant see that it broke right in 2
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  4. #4
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    Quote Originally Posted by acdcfan1283
    dude how hard is it to not see what happened? the aluminum snapped right in half. yeah im sorry its blurry but i dont have a good camera. i have a 2.1 megapixel camera. i dont know how u cant see that it broke right in 2
    Sure, it broke. I can not see if there are any voids in the casting or nicks, scrapes or such that could have formed stress risers.
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  5. #5
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    damn... how the hell did u do that....?

  6. #6
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    yo man the same exact thing happened to my XT

    http://forums.mtbr.com/showthread.php?t=137257

    it was because my chain was too short and when the suspension compressed the wheel got further away from the bb so when it compressed the chain would pull on the deraillure and the deraillure didnt extend that much. you could check if you get a new deraillure by taking off your shock and putting the chain on the biggest sprockets and let the suspension go down and see if the deraillure is pulled all the way. i got a new deraillure and i did this and it was fine so i guess my old deraillure didnt extend as much
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  7. #7
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    Quote Originally Posted by shiggy
    Sure, it broke. I can not see if there are any voids in the casting or nicks, scrapes or such that could have formed stress risers.
    i see. here, i took some more. hope these are better. sorry for having a bad attitude, just frustrated about the whole deal especially since its a week from diablo opening. but yeah, what about in these pictures
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  8. #8
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    i was jut riding along n the thing snapped. i think i hit it a few times, but that was wayyy before it broke. and idk, i have a hard bike to work with cuz of all the swing arm movement but i had the thing set right for the deraileur. i had a crappy deraileur rip due to short chain length, so i dont believe this made it happen. i dont really know. any recommendations on a new deraileur?
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  9. #9
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    Ive done the same thing to XTs.

  10. #10
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    Quote Originally Posted by acdcfan1283
    i was jut riding along n the thing snapped. i think i hit it a few times, but that was wayyy before it broke. and idk, i have a hard bike to work with cuz of all the swing arm movement but i had the thing set right for the deraileur. i had a crappy deraileur rip due to short chain length, so i dont believe this made it happen. i dont really know. any recommendations on a new deraileur?
    The previous hits could have damaged it leading to the breakage.

    The most unbreakable derailleurs I have used were the $15 Shimano 200GS with plastic knuckles instead of metal. The pivots wore out quickly, though, and I would use 2-3 a year. Have not been available for years.
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  11. #11
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    Quote Originally Posted by shiggy
    The previous hits could have damaged it leading to the breakage.

    The most unbreakable derailleurs I have used were the $15 Shimano 200GS with plastic knuckles instead of metal. The pivots wore out quickly, though, and I would use 2-3 a year. Have not been available for years.
    alright, thanks for the help. I dunno what im gonna do yet, ill figure it out
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  12. #12
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    I have seen that happen to XT's too. Happend to a guy i know just last week. There really isnt too much you can do about it. Its just one of those things. Personally I would just put another derailuer on there and go with it. Not every casting/forging/machined part can be perfect so yoou just gotta roll with the punches and get back up. It seems that shimano and sram figured out that by making the parts not last nearly as long, they will break more and cause people to buy their products more often since there really isnt any competition in the bicycle drive train market. These companies also do it with their BB's. They want to save $.05 in grease per bb so they dont put as much into them, and then bam that giga pipe you just shelled out the $$$ for feels like its running on sand paper after 2 months. then the process starts all over again. and companies walk away with more of your $$ in their pocket.
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  13. #13
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    Quote Originally Posted by acdcfan1283
    Yeah...the pics show all. i dunno wtf happened there. Is it worth spendin the extra cash for the x.0, is it stronger then the x.9? this aluminum alloy looks pretty cheap, i dunno. i was just riding along n all of a sudden i hear crack crack snap! and its tangled up in my wheel. let me know :mad2:

    K, those picks are pretty blurry (as stated by a previous poster) but from what can be seen of the coloring of the failed area it looks like it could be multi cycle fatigue cracking - a small hit started the cracking, over time the cracking continued (hence the color differences) until it got to a point it could not hold together then had the final single cycle failure (the all of a sudden crack crack snap....)

    Probably would have happened no matter what rear D you had on. I wold just replace it with another x9......

  14. #14
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    Quote Originally Posted by acdcfan1283
    Anyone else ever have this happen to their x.9?
    nope. nobody has ever broken a rear derrailleur before, you are the first. congrats.....


  15. #15
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    Quote Originally Posted by acdcfan1283
    .....just frustrated about the whole deal especially since its a week from diablo opening....
    yeah, too bad there isn't another derrailleur on the planet.......


  16. #16
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    Quote Originally Posted by .WestCoastHucker.
    yeah, too bad there isn't another derrailleur on the planet.......

    ROFLMAO

    Didnt get your full 8 hours of sleep WCH?

  17. #17
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    had it happen to me. First ride on my yeti dj, and the der. just snapped, just like yours. Sent it back to sram and they sent me a new one. Send it back worst thing they can tell you is that you can't get a new one.

  18. #18
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    Quote Originally Posted by 006_007
    ROFLMAO

    Didnt get your full 8 hours of sleep WCH?
    nope......


  19. #19
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    Quote Originally Posted by .WestCoastHucker.
    nope......
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  20. #20
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    Quote Originally Posted by acdcfan1283
    i was jut riding along n the thing snapped.
    Not making fun of you man so don't get all upset, derailleurs busting is always a bum deal, especially when the resort is about to open. I just think it's funny that you said this because its the never ending saying that all bike shop workers here from customers...

    JRA....Just Riding Along....

  21. #21
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    Quote Originally Posted by .WestCoastHucker.
    nope. nobody has ever broken a rear derrailleur before, you are the first. congrats.....
    why do you always gotta give everyone attitude?
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  22. #22
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    yeah i ordered a medium cage x.9, just hope it getsh ere on time. My LBS doesn't think sram will warranty it, but since apparently they've been having problems with em according to you guys, i told em to try anyways. i'll do what I can. thanks for the help guys
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  23. #23
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    it's not the derailleurs fault.
    Check your der hanger - i bet it was bent from the previous hits. That way, the derailleur cage touched the spokes when shifting into one of the lower gears, it got caught and snap. My X.7 died just like that. Do you run 1x9? then get a short cage derailleur to prevent this, and check your der hanger from time to time.
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  24. #24
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    Quote Originally Posted by acdcfan1283
    why do you always gotta give everyone attitude?
    i don't give attitude, i give stupid answers to even stupider questions....


  25. #25
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    get a new chain and make sure its long enough. cycle the suspension all the way through the stroke to make sure the chain length did not break your derailler
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  26. #26
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    Check the jockey wheels

    My upper jockey wheel would periodically freeze up and apply excess torque to the knuckle. I didn't know it was happening until the X.9 sheared in exactly the same spot as you show. It might not be the case for you if your der has seen a couple of big hits, but that was what did it for me. SRAM uses cartridge bearings which you have to service once in a while (or they lock up) unlike Shimano who uses dry sleeve bushings (either metal or ceramic) which have more inherent drag but almost never freeze up.

  27. #27
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    hmm, interesting things i never knew. YEah the hanger was bent, but my lbs bent it back (its not a replacable hanger, so yeah). It could've gotten caught, not too sure. I do know that i ordered a medium cage x.9 instead of the long. i cant get it in a short , only the x.0. kinda stupid IMO, but thats how they make more money, cuz people opt for the x.0 i suppose.
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  28. #28
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    my x7 did that...
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  29. #29
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    try sending it back, might get a new one in the mail!~~~!!
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