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  1. #1
    mtbr member
    Join Date
    Dec 2005

    S-works crank on alu Air9

    Planning a 5 day-race this summer.
    Because of a mostly good rolling track, yet with 2000m of altimeterclimbing every day, I'm planning to use my rigid Air9.
    I have the opportunity to buy a used S-works Mtn triple crank.
    It comes without BB nor spacers.
    I could lighten up the bike and get rid of the huge Q-factor of my current XT crankset.
    In another thread from 'llama' here (s-works crank on his jet9 RDO), the combination didn't work with a lightning spider, as the granny bolts touched the lip of the Sram PF30.
    As my Air9 bike has the same PF30 73mm shell, I guess this setup won't work?
    Anybody running this crank on his/her Air9? What's the setup?
    Would like to run it double, using my 36/22 TA chainwheels if this is possible.

  2. #2
    mtbr member
    Join Date
    Oct 2006
    I'm sure you could get it to work with the Specialized triple spider. I ran that setup on an Air9C and it worked (as a double and a 1x10).

    You will need some spacers though. Any Specialized dealer can order them for you.

    It's all about how you assemble the spacers, to get the clearance you need. The Jet9 is a bit more constrained, space wise, due to the suspension design.

    Just get a PF30 BB and a spacer kit from specialized and you wil be fine. You can even make due with some generic spacers, like those that come with the Sram PF30 BB, if need be.

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