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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.
    How do you keep an idiot in suspense?

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    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 01:51 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.
    How do you keep an idiot in suspense?

  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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