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Thread: shimano bb

  1. #1
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    shimano bb

    so i found a nos shimano D.A. crankset, the square taper variety. does anyone know what bb I need? Is it JIS or ISO?

  2. #2
    cab horn
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    You need UN-xx. Available at your local LBS. Shimano cart bb.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

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    Cornucopia of Awesomeness baxtefer's Avatar
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    Shimano = JIS
    {o,o**
    |)__)
    -"-"-

    O RLY?

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    Quote Originally Posted by Iridestreet View Post
    so i found a nos shimano D.A. crankset, the square taper variety. does anyone know what bb I need? Is it JIS or ISO?
    Send it to me. I'll take a look at it for you...

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    Lurker for Life yonderboy's Avatar
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    You'll need a 109mm JIS spindle for those cranks. The DA 7600/7610 BB is kinda spendy, but if you can find someone that stocks a 109mm UN-73, you can get one for $40 or so.

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    yeah I figured that it'd be JIS, it's just that on sheldon's website, he mentioned that japanese njs cranks were often ISO, so I wanted to be certain.

  7. #7
    cab horn
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    Quote Originally Posted by yonderboy View Post
    You'll need a 109mm JIS spindle for those cranks. The DA 7600/7610 BB is kinda spendy, but if you can find someone that stocks a 109mm UN-73, you can get one for $40 or so.
    How the hell do you know what length bb he needs? Clairvoyant?
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  8. #8
    Lurker for Life yonderboy's Avatar
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    Quote Originally Posted by operator View Post
    How the hell do you know what length bb he needs? Clairvoyant?
    http://www.businesscycles.com/tr-refspec.htm#cranks

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