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  1. #1
    mtbr member
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    Air 9 Carbon and XTR 2x10

    I picked up an Air 9 Carbon single speed with XTR cranks. It seems this is the one and only crankset not compatible in 2x on the A9C due to the chain line.

    Are there any alternate chain rings compatible with the XTR crank? Or should I just sell the crank and go with XT or SRAM?

    Thanks.

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  2. #2
    greedy
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    I would try it before I sold it. If you leave the EBB in it, it seems like you could adjust the BB rotation for clearance. I have an A9RDO that I have been running 1x10 with the new XTR cranks. I hope that I can run the 38-26 rings on it at some point, if I wanted too. I know that Niner says it can't been done, but I want to say some people on here have done it successfully. Maybe one of them will chime in.
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  3. #3
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    Thanks! That's the kind of feedback I was hoping for. Biggest concern I have is that chainrings for the XTR are going to set me back about $150, and might not work. I could just buy an XT or X9 crankset and be done with it.

  4. #4
    greedy
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    That puts you in a tight spot.
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  5. #5
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    BTW, I'm not sure the EBB is going to help. It looks like a q-factor issue and inner chainring chainstay clearance. I will definitely take a look at it.

    Also thinking about 1x10 with the XTR. Florida is flat but I do like to venture up to the Georgia hills when I can.

  6. #6
    greedy
    Reputation: have2ride2day's Avatar
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    I live in the Northeastern corner of Alabama (same foothills as Georgia) and I have been running mine 1x10 since I built it. Wolf Tooth 32t Chainring and XT shadow plus rear derailleur. I have never dropped a chain and never wanted for any more gears. But, I ride my singlespeed Sir9 most of the time, so 10 gears is a huge relief to me. Getting out of the saddle more often on climbs is the ticket to running 1x10 up here.
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