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  1. #1
    Pro Paper Plane Pilot wunderkind's Avatar
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    removing the crank arm

    Hi,
    Is the crank arm puller device mandatory to remove the crank arm? Seems like all the instructions and youtube videos use that device. Where can I get one of these apart from a bike store? Or is there an alternative?
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  2. #2
    Great State of Varmint Panthers007's Avatar
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    Yes - you need one or you'll destroy it. Start by telling us what sort of crankset and bottom-bracket that you have. Then we can direct you to the correct tool and instructions.
    Quote Originally Posted by Cateye View Post
    Only panthers007 is stupid enough to believe that this is a good idea.

  3. #3
    Senior Member MudPie's Avatar
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    Yes, a crank arm extractor is mandatory if you want to reuse the crankarm. You can buy extractors from LBS or online and are a very common item. Make sure you get the right extractor for the crank interface: square taper, ISIS, Octalink...

    Here is an example of one for $7, that works on the above three crank arm types. It's not "shop quality" or bears a fancy name, but seems to be perfect for the weekend mechanic.:

    http://www.pricepoint.com/detail/145...ank-Puller.htm

  4. #4
    Senior Member johnknappcc's Avatar
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    I'm assuming you have a square taper? The Park CWP-7C can handle square and splined (although some splined have a self extracting crank bolt.

    Its a fun little tool to use . . .

  5. #5
    Senior Member MudPie's Avatar
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    Quote Originally Posted by johnknappcc View Post
    Its a fun little tool to use . . .

    Yes, I concur! It's a good demonstration of the power of a screw.

  6. #6
    Pro Paper Plane Pilot wunderkind's Avatar
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    Quote Originally Posted by Panthers007 View Post
    Yes - you need one or you'll destroy it. Start by telling us what sort of crankset and bottom-bracket that you have. Then we can direct you to the correct tool and instructions.
    I wouldn't have a clue as to what type of crankset. This is for a 07 Norco Mountaineer and a 06 Trek 820.
    Last edited by wunderkind; 07-23-09 at 12:51 AM.
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  7. #7
    Great State of Varmint Panthers007's Avatar
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    Hard to tell even from the descriptions from the manufacturers. But a Park Tool CWP-7 would handle it. One says a tapered 115mm would fit, but it looks like a cartridge-bearing. No matter - CWP-7 will get it opened.
    Quote Originally Posted by Cateye View Post
    Only panthers007 is stupid enough to believe that this is a good idea.

  8. #8
    Pro Paper Plane Pilot wunderkind's Avatar
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    OK I did some research. I think they are square tapered. Both uses the Suntour XCC-series crankset. Which according to the suntour website is compatible with square BB.
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