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  1. #1
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    Specific crank bb questions...

    I'm going to go 2x9 or 2x10 on my bike. Need recommendos for a crank and bottom bracket combo that fits the following criteria:

    1. 51mm chainline on my Yelli Screamy means tight tolerances.
    2. Prefer 26/39 or 24/36 chainrings.
    3. Need bottom bracket that can handle wet and muck.
    4. Prefer set it and forget it maintenance (as much as possible).
    5. I'm a clyde: 255 lbs. I see lots of talk of ceramic bearings, enduro bearings, oversized bearings. Not sure what's the best for a guy my size.

    Was interested in e thirteen because of the larger bb spindle and large bearings in the bb, but I've read that they can make for trouble in wet weather.

    I don't mind spending a bit of coin--up to $300. And I don't mind buying bb and cranks seperate. Any help out there?

  2. #2
    Just a flesh wound
    Reputation: Prophet Julio's Avatar
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    I don't know much about the newer external bearing BB's, but SKF makes a bomproof BB in ISIS and square taper. That said, there are a lot of good options out there.

    Real world Cycling has Enduro stuff. MTBTandems.com has the SKF stuff

    Good luck.
    My name is Chris and I ride a Prophet 650b with a Lefty.

  3. #3
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    Thanks. Maybe because I posted on the weekend I haven't gotten much response. That, or I didn't simplify my question enough. Really, I just want a clyde bottom bracket that has a reputation for holding up to wet and muck. I know water and mud are the worst hazzards for bb's, but I wasn't sure if any one were better than the other. Here are the bb's most recommended here at mtbr:
    -Hope
    -Chris King
    -Enduro
    Another thing I don't know much about is bearings. What makes ceramic vs. steel vs. AL vs. bearing size preferable? Should a clyde be looking for a certain kind of bearing?

  4. #4
    Just a flesh wound
    Reputation: Prophet Julio's Avatar
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    SKF bottom brackets are made with a unique axial seal that makes them a good choice for wet and muddy conditions.

    MTBTandems sells them for tandem bikes. They have Cro-Moly and Stainless versions. I went full stainless 4 years ago. I ride the rocks, roots and mud of New England on a Cannondale Prophet. I would highly recommend the SKF. It is not for weight weenies. Mine is still as smooth and quiet as day one.
    My name is Chris and I ride a Prophet 650b with a Lefty.

  5. #5
    Just a flesh wound
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    Check out this link.

    http://www.mtbtandems.com/SKF.htm
    My name is Chris and I ride a Prophet 650b with a Lefty.

  6. #6
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    Reputation: rockyuphill's Avatar
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    SRAM X-0 and Noir 3.0 cranks are designed around a 51mm chainline.
    I'm a member of NSMBA and IMBA Canada

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