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  1. #1
    Hump, what hump? horatio's Avatar
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    Crank/spindle bolt question...

    Which is the correct size for standard crank bolts, 14mm or 15mm? There's a 15mm bolt in one of my spindles and I can't get a socket inserted deep enough to grab it and break the bas*ard free. All the other bolts I have encountered for square-taper spindles have been 14mm.
    2010 AB T1X ** 2010 Cannondale SIX-5 ** 1989 Pinarello Montello ** 1989 Pinarello Treviso ** 1989 Bianchi Brava ** 1988 Nishiki Olympic ** 1987 Centurion Ironman Expert(2) ** 1986 Basso Gap ** 1985 DeRosa Professional SLX ** 1985 Merckx Professional ** 1982 Basso Gap ** 1982 Colnago Super ** 198? Ciocc Competition SL ** 19?? Roberts Audax

  2. #2
    Can'tre Member 3alarmer's Avatar
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    They come in 14, 15 and a few 16mm. Use a thin wall socket,
    or buy one of those swell purpose built crank bolt wrenches
    made by Park and other companies.
    Quote Originally Posted by CKey_Cal View Post
    Facts are binary. If they aren't, then they aren't facts.

  3. #3
    Hump, what hump? horatio's Avatar
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    I'm having trouble finding a thin-walled socket. I'll keep looking. Just wanted to be sure it wasn't buggered by a PO. Thanks.
    2010 AB T1X ** 2010 Cannondale SIX-5 ** 1989 Pinarello Montello ** 1989 Pinarello Treviso ** 1989 Bianchi Brava ** 1988 Nishiki Olympic ** 1987 Centurion Ironman Expert(2) ** 1986 Basso Gap ** 1985 DeRosa Professional SLX ** 1985 Merckx Professional ** 1982 Basso Gap ** 1982 Colnago Super ** 198? Ciocc Competition SL ** 19?? Roberts Audax

  4. #4
    26 tpi nut. sailorbenjamin's Avatar
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    I've ground a regular socket down for the purpose, worked great.
    Till I lost it, then I ground another one down, it worked great too.
    Then I found the first, now I have two. If you're not in a hurry, you can PM me your address and I'll send you one of them. It might be a few days before I can get to the post office, though, I've got the work schedule from Heck this week.
    I have spoken.

  5. #5
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    My experience has shown that higher end sockets typically fit and cheaper Chinese sockets do not. I've had no problem using a craftsmen socket.

  6. #6
    Old fart JohnDThompson's Avatar
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    Quote Originally Posted by thirdgenbird View Post
    My experience has shown that higher end sockets typically fit and cheaper Chinese sockets do not. I've had no problem using a craftsmen socket.
    Agreed, Craftsman and Snap-On sockets work fine with the 15mm bolts here. If you're lucky enough to have a Zeus crank with 16mm bolts, you pretty much need to use the Zeus wrench (or the long out-of-production Park copy thereof) or a custom-thinned socket to remove the bolts.

  7. #7
    WNG
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    Spin Forest! Spin! WNG's Avatar
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    Just a caveat regarding Craftsman sockets. They usually have two suppliers and the quality and thickness of one is inferior to the other. The inferior offering is usually the bundled toolsets in plastic carrying cases. Tell tale sign are the ratchets supplied, with a knurled spinner, not the better quick release button.
    These sockets don't fit. The higher quality ones do fit, and they are also the ones sold individually.
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  8. #8
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    Quote Originally Posted by WNG View Post
    Just a caveat regarding Craftsman sockets. They usually have two suppliers and the quality and thickness of one is inferior to the other. The inferior offering is usually the bundled toolsets in plastic carrying cases. Tell tale sign are the ratchets supplied, with a knurled spinner, not the better quick release button.
    These sockets don't fit. The higher quality ones do fit, and they are also the ones sold individually.
    That is a good point. The craftsman I use is much older than I am and predates the cheaper line.

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