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  1. #1
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    MTB triple vs road double

    Could I use this FSA - Mtb 22/32/44t crankset Amazon.com: FSA AFTERBURNER BB30 175mm Crankset Mountain Bike Mtb 22/32/44t CK-OS9195: Sports & Outdoors and just remove the 22T ring as a cyclocross compact crank? As apposed to this: Product

    I would rather have 32/44t (instead of Shimano's 36/46 for cross (and replacing the chainrings are super expensive).

    I realize that the FSA is heavier, but are there other considerations using the FSA crank with a 68mm bottom bracket instead of a road crank for cross (on a Canonndale CAAD9 frame).

  2. #2
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    Other main consideration would be if you are using road double shifters - then you'll have an extra chainring in front, and I'm not sure what the spacing is for mtb versus road between the rings. It would probably work, but you might need a spacer kit for the cranks?

    What about using a mtb double that are so popular today? I think you can go 28/42-ish which is really close to what you are looking for but with a much lower low gear.

  3. #3
    jrm
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    Thats a great idea

    Quote Originally Posted by wilier View Post
    Other main consideration would be if you are using road double shifters - then you'll have an extra chainring in front, and I'm not sure what the spacing is for mtb versus road between the rings. It would probably work, but you might need a spacer kit for the cranks?

    What about using a mtb double that are so popular today? I think you can go 28/42-ish which is really close to what you are looking for but with a much lower low gear.
    all this time messing with rings and weird configs.

  4. #4
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    Do you know of a 28/42 mtb crankset that will work with a bb30? I've been wanting one for a while.

  5. #5
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    By the way - I have a bike with SRAM Force all around, but a SRAM XX double crank. Works perfectly for me, shifting is as good with the smaller XX cranks as with the Force. No clearance issue on my frame with the FD being too close to the chainstay when shift to the smaller ring, but that was my only concern when I built the thing. Anyway, just an FYI that this type of build has been tested and works.

  6. #6
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    Quote Originally Posted by gobes View Post
    Do you know of a 28/42 mtb crankset that will work with a bb30? I've been wanting one for a while.
    the FSA Afterburner 386 makes a 42/27 for bb30.
    Quote Originally Posted by Jesse D Smith
    You can always tell the guy that started his day with a proper shave versus the guy who started his day slappin' it to internet porn.

  7. #7
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    Quote Originally Posted by gobes View Post
    Do you know of a 28/42 mtb crankset that will work with a bb30? I've been wanting one for a while.
    SRAM XX comes in 28/42 as well as the aforementioned FSAs.

  8. #8
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    both my cross rigs

    Quote Originally Posted by jrm View Post
    all this time messing with rings and weird configs.
    have mountain triples with no little ring (set up as doubles). Buy a BB that fits correct and done
    one nation, under surveillance with liberty and justice for few

    still not figgering on biggering

  9. #9
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    Quote Originally Posted by wilier View Post
    SRAM XX comes in 28/42 as well as the aforementioned FSAs.
    I knew about the SRAM crankset but I was told that that was for a mountain bb30 which is different than a road bb30. Can somebody verify that the two bottom brackets are different?

  10. #10
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    I think the BB30 bearing assembly brand/model depends on the brand/ model of crank used ie.: http://www.amazon.com/Sram-SRAM-BB30.../dp/B003L9K7G4

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