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  1. #1
    Senior Member
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    05 Bianchi Pista, 07 Niner Air 9
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    Help with new cranks and bb (sram omnium)

    I've had a set of sram omniums laying around for a while now and I've finally got the time to install them. I have an 05 pista and right now it has the stock sugino bb and shimano 600 cranks. My wheels are deep vs laced to formulas.

    With that said, I was never the best at figuring out chainlines. On the two bikes I've built myself, I pretty much winged it and both chainlines came out ok (using the inside ring on one of them). I know I need a new bb since the cranks have external bearings. I don't need anything super nice, just something that will work with my setup. How about this guy? http://www.jensonusa.com/store/produ...Bb+Cupset.aspx

    So will the English 68/73mm work with my bike/wheelset?

    Any advice would be appreciated.

  2. #2
    Don't Worry..Beef Curry
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    80's converted Centurion
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    there is only one BB for that crank. The one you highlighted @ jenson is the one. The english model.
    Last edited by tek336; 06-08-10 at 09:01 PM. Reason: addition

  3. #3
    Ths Hipstr Kills Masheenz cc700's Avatar
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    it's a system called BB30. i have a set of elita's on my road bike that use the same bb.

    your chainline will be fine. maybe not perfect, but fine.

  4. #4
    Senior Member
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    ok thanks dudes, I'll order it up and hope it lines up ok

  5. #5
    A little North of Hell
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    Omnium

    Quote Originally Posted by cc700 View Post
    it's a system called BB30.
    The Omniums are not BB30 standard.

    http://www.bb30standard.com/


    Enduro and Chris King make BB's for the Omnium's.

    http://chrisking.com/bottombracket
    [SIGPIC][/SIGPIC]
    XXXI

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