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  1. #1
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    Wheels Manufacturing BB86/92 Thread Together tube diameter

    I need to know what is the outer diameter of the Wheels Manufacturing BB86/92 Thread Together bottom bracket connecting tube. I have bike (BMC Fourstroke) that has carbon bottom bracket shell with reinforcing bulge in the middle. For example I cannot install the connecting tube of the Shimano SM-BB94-41A bottom bracket - the flanges are too large.

  2. #2
    since 4/10/2009
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    maybe give wheels mfg a call? most folks who have this part are going to have it installed, and not exactly accessible for the measurement you want.

  3. #3
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    Got answer from Wheels Mfg. Diameter is 33mm which is unfortunately too big. There seem to be some alternatives like Tripeak (BB86/89.5/92 - TRiPEAK) with 31mm and Hope that is even smaller, but they are not available with angular contact bearings. Enduro also has this type of bb but it is very expensive compared to others and also seems to be too thick.

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