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  1. #1
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    Bottom Bracket Assisstance

    Onto my second conversion in recent months and ive reached a snag. Previously, a bottom bracket was never a real problem, yet now with my mid 80s Univega, im at a loss as to sizing. The bottom bracket reads as follows:

    3S
    83-K

    What the *&%^ does that mean? Will a regular old 68mm fit it or am I in need of something special? Any help is appreciated as I am in the dark in this respect.

  2. #2
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    Anybody??

  3. #3
    fails just as quickly thequickfix's Avatar
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    I doubt that code has anything to do with the shell or spindle width.

    Your frame likely takes an English bottom bracket. The spindle length and crank interface will depend upon the cranks you plan to use.
    Takin' the first bus out of Shell Town

  4. #4
    cab horn
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    Quote Originally Posted by famous amos View Post
    Anybody??
    < 2 hour after initial post bumping = you do not deserve an answer
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  5. #5
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    Ouch, i'm sorry i didn't know the accepted time limit. I'm just trying to get this figured out. Thanks for the help, I plan on just using the original cranks. Would this narrow down my field of usable bbs by longer spindle size or what? Sorry to keep asking but any help is appreciated.

  6. #6
    Sporadic Fool
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    I believe 68 is just the width of the BB shell, which you can easily measure
    http://www.nashbar.com/tech/sizebike.cfm#2

    as for "3S," Sheldon may have something for you: http://sheldonbrown.com/bbsize.html

  7. #7
    fails just as quickly thequickfix's Avatar
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    Wow, Sheldon has the answer. I stand corrected, the "3S" tells you everything you need to know.

    Why wouldn't they just stamp the shell width & spindle length instead of a cryptic code?
    Takin' the first bus out of Shell Town

  8. #8
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    Thanks for all the help.

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