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  1. #1
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    Locknut and cone "stuck" on rear axle Trek 7.1

    I need to get this loose. The piece seems stuck. I am not a small guy but for the life of me I can not loosen this. I have tools, just not have the correct tool at the moment. Any suggestions? Should I put it in a vice or something?
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    Last edited by GECKYL; 07-02-11 at 03:10 AM.

  2. #2
    Senior Member mortenfyhn's Avatar
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    Hold the axle in a vise with something to protect the threads, and it should be possible to get the locknut off with ring spanner that fits, or with a large adjustable spanner.

  3. #3
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    Don't clamp down on the axle(Odds are, it'll just spin), clamp down on the cone. It'll take that punishment like it's nothing. Then any regular wrench should let you get the locknut loose.

    But even better would be to have the appropriate slim cone wrench at hand.

    You might be able to improvise something. Perhaps put two nails against the flats on the cone before clamping it in the vise.

  4. #4
    Quirky Grifter LesterOfPuppets's Avatar
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    Why do you need to get it loose?

    If you need to get it loose because you're replacing the cone you should really get the appropriate cone wrench anyways for when you put it back together.
    1980ish Free Spirit Sunbird fixed * 1996 Mongoose IBOC Zero-G * 1997 KHS Comp * 1990-ish Scapin * Lemond Buenos Aires Triple

  5. #5
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    Quote Originally Posted by LesterOfPuppets View Post
    Why do you need to get it loose?

    If you need to get it loose because you're replacing the cone you should really get the appropriate cone wrench anyways for when you put it back together.
    I'm replacing the axle and the cone is not in the correct position for my hub. It's a universal axle set...

  6. #6
    Let your bike be the tool cranky old road's Avatar
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    You understand that the cone and nut have to be turned in opposite directions, away from each other, to loosen them?
    Last edited by cranky old road; 07-02-11 at 05:33 AM. Reason: clearer syntax
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  7. #7
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    Get the right size cone wrench. As already mentioned, what you really need it for is putting the parts back together.

    The right hand side cone needs to be locked tightly against the locknut. It is hard/impossible to do this without a cone wrench.

    If the right hand cone is not locked up tightly, it can rotate as the wheel turns, tightening itself against the bearings. You run the risk of locking up the wheel and breaking the axle.

    The left hand cone, if it becomes loose as you ride, will rotate in a direction away from the bearings giving you a sloppy adjustment, but not a sudden lockup of the wheel.

    Get the right size cone wrench, lock up the right hand cone, put the hub back together, and make the bearing adjustments from the left hand side.

  8. #8
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    Quote Originally Posted by Just Riding View Post
    Get the right size cone wrench. As already mentioned, what you really need it for is putting the parts back together.

    The right hand side cone needs to be locked tightly against the locknut. It is hard/impossible to do this without a cone wrench.

    If the right hand cone is not locked up tightly, it can rotate as the wheel turns, tightening itself against the bearings. You run the risk of locking up the wheel and breaking the axle.

    The left hand cone, if it becomes loose as you ride, will rotate in a direction away from the bearings giving you a sloppy adjustment, but not a sudden lockup of the wheel.

    Get the right size cone wrench, lock up the right hand cone, put the hub back together, and make the bearing adjustments from the left hand side.
    A big amen to this!

  9. #9
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    Thanks guys! I did use the vice and it worked (with 2 nails) on the cone. A cone wrench is ideal however this is my commuter bike so I need it and will have to wait on the wrench and tighten carefully with the vice again... I know, I know....

  10. #10
    bike whisperer Kimmo's Avatar
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    Cone wrenches are cheap.

    Alternatively, if you have the right-sized spanner lying around, and have access to a grinder...

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