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  1. #1
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    Swiss BB - How to use Phil Wood rings with Shimano, Miche?

    I have a late 70's Motobecane with a Swiss threaded BB.

    As I've pretty much given up on finding a new Swiss threaded BB, I've searched forums for possible solutions, which seem to be:

    1. Get Phil Wood Swiss BB cups
    2. Combine with Phil Wood sealed BB, Shimano UN72, or Miche Primato

    My confusion is this, the Phil Wood sealed BB's have no threads on them, they are held in place with the cups:



    All the photos I could find of the Shimano and the Miche show them WITH threads:


    Shimano


    Miche

    but I've read on here that people have used these BB with the Phil Wood rings.

    My question: How? Is these some easy way to remove the threads?

  2. #2
    Stop reading my posts! unworthy1's Avatar
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    I seem to recall that the Phil rings do NOT work with the Miche Primato, can't remember if it's a diameter issue or what. I think you can use Phil rings with any of the Shimano units that have removable cups on both sides, but again there may be some fit issues with the width of the Shim body: you may need to run the Phil rings very deep into the BB shell. Unfortunately, the simplest solution is just buy the Phil BB, it fits and lasts, just costly is all.
    To answer the question: you see that the Phil unit uses threaded "rings" which are just shorter versions of the threaded "cups" that the Shim and Miche use, they are all removable from the BB "body" (just pull off), and all 3 use a different specific tool to install/remove the units in/from your BB shell
    Last edited by unworthy1; 10-22-07 at 12:33 PM.

  3. #3
    Senior Member
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    It's the Shimano UN-72 sealed BB that had removable rings on both sides; unfortunately, it's no longer made.

    Neal

  4. #4
    Senior Member Grand Bois's Avatar
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    I tried the Miche Primato with Swiss Phil cups and it didn't work. A machinist could probably make it work, but that may cost more than a Phil bottom bracket.

  5. #5
    crotchety young dude el twe's Avatar
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    IRO Angus; Casati Gold Line; Redline 925; '72 Schwinn Olympic Paramount
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    The Phil will probably end up being only a little more expensive than finding a NOS UN72 when you factor in BB lifespan. Those bearings last forever.
    Quote Originally Posted by CardiacKid View Post
    I explained that he could never pay me enough cash for the amount of work I had put into that bike and the only way to compensate me for it was to ride the hell out of it.
    IRO Angus Casati Gold Line

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