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  1. #1
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    Chain Keeps Dropping on '09 Spot Help

    Front: 22t-36T double ring front crankset, Shimano XT 9 Spd
    Front Der: XTR 9spd
    Cassette: XT 11-36 10 Spd
    Chain: Shimano 10 Spd
    No chain tensioner or guide

    Yes, I've tuned the front derailleur, so much so that it rubs slightly when in the Granny-36T combo. Yes, the chain is oriented correctly.

    But still, very consistently the chain drops off the 36T, misses the Granny. Dang frustrating.

    Anyone else having this problem? I'm about ready to get a Paul Chain Keeper or something.
    We Ride In God's Country!

  2. #2
    Kiwi that Flew
    Reputation: deanopatoni's Avatar
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    Take it to your LBS. Go get a coffee. Pick up the bike and ride

    I know these things are really frustrating, but if you have tried your best and it still aint working, then get the guys at the shop to sort out. Lifes too short.

    Good luck

    deano

  3. #3
    mtbr member
    Reputation: rockman's Avatar
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    Perhaps dropping down to a 22t chainring is too small for the spot. If the derailleur is adjusted properly maybe try a 24t ring since you've got an 11-36 cassette. I don't know what you're terrain is like but 24-36 seems like plenty easy unless you're climbing walls. Maybe it won't make a difference but it might be worth a try. Also, try a bit more cable tension at the shifter.

  4. #4
    striker!
    Reputation: superstock's Avatar
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    I had a similar problem on one of the older spots. In my case, new chainrings and a new chain fixed the problem. They were pretty worn and the chain would drop during descents. With a new drivetrain, the chain stayed put much better.

    Now I run an e13 DRS and the chain never drops.

    S

  5. #5
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    I was having similar problems with my chain. I went from an X9 fr der. to an XX, and the problem went away. I'm running XTR 970 cranks with Blackspire 26-38 rings up front. Other than that, I'm not much help. Seems like the XX is better designed for a 2 ring front set-up with a larger distance in ring count. Not sure about your XTR though. Best of luck to ya, I feel ya, it is frustrating!!

  6. #6
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    I'm not sure how cross compatible the 9spd to 10 spd stuff is. Don't remember if the 10 spd chains are narrower or not like the 8 to 9 spd change.

    It would seem to me that your 9spd chain rings up front combined with the 9spd f.der could be the problem. For these new 2 x10 drivetrains I would assume they adjusted the f.der. travel to account for the larger drop in ring size or at least modified the cage to keep the chain controlled during the shift. I would think 10 spd f.der and rings would solve it.

    One other thing of note: What side do you have the Shimano BB space on? If changing the spacer around improves your chainline it might help also. Like moving the spacer from Drive to none drive to bring the chain line in.

    Just a few ideas. Hope you get it figured out.

  7. #7
    bump and grind
    Reputation: cobym2's Avatar
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    Put in a tensioner. The Blackspire Stinger is a pretty cheap and simple addition and it eliminated the chain dropping on my 22-36 combo.

  8. #8
    Huckin' trails
    Reputation: David C's Avatar
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    I have a dual ring crank on my freeride and since I've put a Truvativ Shiftguide chain guide on, no more chain slap or drop.

    At $50, it worth it.

    David
    Quote Originally Posted by NicoleB28 View Post
    topless. that's what all mtb girls do. we go ride, get topless, have pillow fights in the woods, scissor, then ride home!

  9. #9
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    I just picked up a RaceFace Atlas chainguide system. This should do the trick and I was going to put on a tensioner anywaz. Thanks for the advice homies.

    ...BTW love my Spot and the places it takes me...when the friggin chain doesn't drop that is (not the frame's fault).
    We Ride In God's Country!

  10. #10
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    Funny thing. I took another look at my Fr Der and it turns out there was a small gap of space, enough to adjust the limit screw 1/4 turn in. Lo and behold, no more chain drop! Somehow the bike menehune's must have fooled around with the der..
    We Ride In God's Country!

  11. #11
    Huckin' trails
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    Quote Originally Posted by myitch View Post
    Funny thing. I took another look at my Fr Der and it turns out there was a small gap of space, enough to adjust the limit screw 1/4 turn in. Lo and behold, no more chain drop! Somehow the bike menehune's must have fooled around with the der..
    Ah, maintenance
    Quote Originally Posted by NicoleB28 View Post
    topless. that's what all mtb girls do. we go ride, get topless, have pillow fights in the woods, scissor, then ride home!

  12. #12
    Yes, that's fonetic
    Reputation: whoda*huck's Avatar
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    Quote Originally Posted by David C View Post
    I have a dual ring crank on my freeride and since I've put a Truvativ Shiftguide chain guide on, no more chain slap or drop.

    At $50, it worth it.

    David
    A Spot isn't a "freeride". Do you dispense "advice" in every forum regardless of your knowledge of the subject?

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