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  1. #1
    Single-Malt Rider squidie's Avatar
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    What tool do I need? #1

    Iím un-sure which tools to use to remove the crank and cartridge sealed BB on my bike. The specs are here:

    http://www.mcbains.com.au/index.php?q=node/362

    Photo of the crank bolt that I took in my garage:



    The crank bolt in the picture displays a 12.9. I guess thatís a 13 or 12 socket?

  2. #2
    Senior Member triplebutted's Avatar
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    They are usually 15mm. But who knows, maybe yours is smaller?
    You'll need a crank puller.

  3. #3
    cab horn
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    Quote Originally Posted by squidie View Post
    I’m un-sure which tools to use to remove the crank and cartridge sealed BB on my bike. The specs are here:

    http://www.mcbains.com.au/index.php?q=node/362

    Photo of the crank bolt that I took in my garage:



    The crank bolt in the picture displays a 12.9. I guess that’s a 13 or 12 socket?
    Those are usually 14mm socket.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  4. #4
    WillFam-Clovis,CA
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    +1
    Unbolt the center screw, then use the crank remover.
    http://www.sheldonbrown.com/gloss_cn-z.html#crankpuller

  5. #5
    Call me The Breeze I_bRAD's Avatar
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    12.9 is the grade of the bolt, not the size.

  6. #6
    Single-Malt Rider squidie's Avatar
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    Okay so these crank pullers, do they come in different sizes? And is this one okay?

    http://www.allterraincycles.co.uk/product/116106.html

  7. #7
    Call me The Breeze I_bRAD's Avatar
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    the one you have linked is pretty versatile. It'll probably work fine

  8. #8
    Luddite
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    It looks pretty standard- if so then you'll need a 14 mm or 15 thin-walled socket to remove the bolt, and a crank puller to remove the crank. Don't despair, these are relatively inexpensive tools. Buy them locally, then if they don't fit, you can take them back. Also, there are a few sizes of threads in cranks for the puller to thread into, but it's likely you have the most common version (22x1mm):

    http://www.biketoolsetc.com/index.cg...tem_id=LF-04C2

    Then you'll need the tool for unscrewing the BB cartridge itself- I can't see it in the picture, but you probably will want a Shimano-style tool-

    http://www.biketoolsetc.com/index.cg...item_id=CU-074

  9. #9
    Single-Malt Rider squidie's Avatar
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    Quote Originally Posted by I_bRAD View Post
    the one you have linked is pretty versatile. It'll probably work fine
    So thatíll take the crank bolt out then all I need to do is remove the cartridge sealed bottom bracket and re-grease the bearings, which is what Iím wanting to do.

  10. #10
    Call me The Breeze I_bRAD's Avatar
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    No, a socket takes the bolt out. The puller pulls the crank off.
    You don't regrease cartridge bottom brackets. You throw them away and put in a new one.

  11. #11
    Single-Malt Rider squidie's Avatar
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    Quote Originally Posted by I_bRAD View Post
    No, a socket takes the bolt out. The puller pulls the crank off.
    You don't regrease cartridge bottom brackets. You throw them away and put in a new one.
    Okay, but itís removable to check for water interference?

  12. #12
    aspiring bike mechanic leweee's Avatar
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    you will need tools to take apart the bottom bracket too.


    http://www.parktool.com/repair/readhowto.asp?id=94
    Derailleur!!!! Hell, I just meet her.

  13. #13
    Call me The Breeze I_bRAD's Avatar
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    Quote Originally Posted by squidie View Post
    Okay, but itís removable to check for water interference?
    It's only $15 for a similar quality replacement. I'd be in the if it ain't broke don't fix it camp.
    Unless you want to take it apart for fun or for a learning experience, or a fun learning experience, then it's not worth it.

  14. #14
    Single-Malt Rider squidie's Avatar
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    So I’ve bought some sockets, and I’ve also bought the crank puller. Is that all I need for now?

  15. #15
    Senior Member
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    Yes, but as noted, in order to remove the bottom bracket, you'll also need to buy a BB tool, probably something like this: http://www.parktool.com/products/det...25&item=BBT-22

  16. #16
    Great State of Varmint Panthers007's Avatar
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    Without a photo of what you are seeing once the cranks are out of the way, Mondoman may be correct on his guess, but don't buy one until you (or we) confirm the identity of the bottom-bracket.
    How do you keep an idiot in suspense?

  17. #17
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    Thanks, p7!

  18. #18
    cab horn
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    Quote Originally Posted by Panthers007 View Post
    Without a photo of what you are seeing once the cranks are out of the way, Mondoman may be correct on his guess, but don't buy one until you (or we) confirm the identity of the bottom-bracket.
    With a crankset like that? 99.9% sure it's a shimano cart type square taper. Although I can almost convince myself that there's a bb lockring in that picture as well.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  19. #19
    Single-Malt Rider squidie's Avatar
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    Okay so when I’ve got the tools to take out the crank, I’ll post some photos. Thanks.

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