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  1. #1
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    BB - square taper vs. splined

    is one considered better than the other? (especially for ss/fg purposes)?

  2. #2
    Paste Taster Retem's Avatar
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    I like both da and fsa but not truvativ
    Squares are old school and I have some that are 30+ years old and they are still buttery smooth
    I am dyslexic so bear with my posts.... [SIGPIC][/SIGPIC]

  3. #3
    cab horn
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    Quote Originally Posted by odie91
    is one considered better than the other? (especially for ss/fg purposes)?
    For conversion purposes, square taper FTW.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  4. #4
    ex-everything. soze's Avatar
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    Squares open up your crank options considerably.

  5. #5
    Geek Extraordinaire sivat's Avatar
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    Like the other 2 said, square taper is better for single-speed and fixed. Square taper bbs are available in just about any length from 103mm to 120mm. Somewhere in there you will find a length that will put you within 2mm or so of a perfect chainline. Since splined bbs are available in only 1 or 2 (depending on the kind) lengths, you just have to hope the chainline will be close.

    As for which works better in general, without looking at adjustability, square taper has been around for years and is only recently being replaced by external bearings. It works well, lasts a long time, and is easy to install. There have been complaints that some of the spline designs tend to loosen over time.
    I'd rather have a bottle in front of me than a frontal lobotomy.

    Sintesi Conversion Serotta Track

  6. #6
    elite
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    square taper all the way. even campy knows this and has been using it forever just because they know that the other designs suck. the new ultra torque is not necessarily better, its just the first bb thats been *invented* thats probably just as good as square taper.

  7. #7
    Sir Fallalot wroomwroomoops's Avatar
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    Lots of BBs and crancks for square-taper. As sivat very correctly said, the vast choice of widths will allow you to adjust the chainline straight.

    When Shimano had the bright idea to go with Octalink, we had suddenly Octalink V1, then V2 and somewhere in that time, also ISIS. A LOT of interfaces all came out in a short time. Then it turned out that the bearings on those BBs lasted way shorter than with square taper (less space for bearings in the new cartridges), so they had to put them outside.

    Feels like VHS vs Betamax all over again, in a way. Or HD-DVD vs Blue-Ray. I'll wait this one out, thank you very much. In the meantime, I standardized on square-taper.

  8. #8
    Senior Member sers's Avatar
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    while i was reading up on the benefits of ceramic ball bearings, i came across an interesting little tidbit in a usenet thread that jobst brandt was frequenting. in general a high quality square taper bottom bracket has less bearing drag than a high quality external bearing bottom bracket. also, a square taper campy record was found to have less bearing drag than the fsa ceramic megaexo.

    however, it seems that unless you're putting out pro peleton wattage, the bearing drag of quality components makes no effective difference.

  9. #9
    Paste Taster Retem's Avatar
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    Quote Originally Posted by sivat
    Like the other 2 said, square taper is better for single-speed and fixed. Square taper bbs are available in just about any length from 103mm to 120mm. Somewhere in there you will find a length that will put you within 2mm or so of a perfect chainline. Since splined bbs are available in only 1 or 2 (depending on the kind) lengths, you just have to hope the chainline will be close.

    As for which works better in general, without looking at adjustability, square taper has been around for years and is only recently being replaced by external bearings. It works well, lasts a long time, and is easy to install. There have been complaints that some of the spline designs tend to loosen over time.

    I have to say that the adjustable chainline on my isis plat track bb is very nice dialed that thing in dead silent
    I am dyslexic so bear with my posts.... [SIGPIC][/SIGPIC]

  10. #10
    All ur bike r belong Enki james_swift's Avatar
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    It's hip(ster) to be square (taper). Couldn't resist.

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