Middleburn ISIS BB- Mtbr.com
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  1. #1
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    Middleburn ISIS BB

    Which bottom bracket would you choose? I was all set on the Crank Brothers due to the 5 year warranty, but now I'm not so sure.

  2. #2
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    I used the CrankBro Titanium ISIS BB before with the Middleburns, was happy with it.

  3. #3
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    SKF bottom bracket. You can get them at MTBtandems.com.

    They're not cheap, they're not light, but they spin smooth for years with zero maintenance. I've got one with 3 years on it that I use with Middleburn cranks and it still feels like brand new.

  4. #4
    AZ
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    SKF , its the only one that I use now .

  5. #5
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    Quote Originally Posted by steiny

    They're not cheap, they're not light, but they spin smooth for years with zero maintenance. I've got one with 3 years on it that I use with Middleburn cranks and it still feels like brand new.
    How heavy are they? Can't find a weight anywhere.

  6. #6
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    200g actual weight. Got one from MTB Tandems, didn't like the ISIS design, returned everything for square taper and got a Phil Wood BB.

  7. #7
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    Quote Originally Posted by DavidR1
    How heavy are they? Can't find a weight anywhere.
    Go to the mtbtandems.com site, and scroll down about half way until you see SKF and then click on the "here" link. They use frames so I can't give you a direct link to the page.

    Weight is right around 300g for the BXC versions. The weights for the BFR are accurate (that's what I have) so I'll bet the others are accurate too.

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