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  1. #1
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    opinions on loctite and/or rotafix

    I've searched plenty and understand rotaxing and such, I was just wondering on what you guys think.

    In the past I have unthreaded my cog/lockring skidding (for fun, I have a front brake) and I can't weld the cog on. I was wondering if either rotafixing the cog or loctiting it or both would hold it on strong enough to skid again without worrying about the cog.

    Thanks,
    J

  2. #2
    Senior Member rustybrown's Avatar
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    Quote Originally Posted by mashedpaters View Post
    I was wondering if either rotafixing the cog or loctiting it or both would hold it on strong enough to skid again without worrying about the cog.
    Nah.

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    Senior Member PlattsVegas's Avatar
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    Unthreading a lockring skidding? Should be pretty hard to do, as it is reverse threaded. Get a lockring tool. Rotafix your cog, and then tighten that lockring down. don't bother with locktite, and don't be a ***** about tightening your drivetrain!
    Keepin' it real, while keepin' it safe

    how are your nipples? pointy?

  4. #4
    Veteran Mother****er Scrodzilla's Avatar
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    Senior Member rustybrown's Avatar
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    ...completely missed the mention of a lockring. Torque that down. Use muscles. ^^^

  6. #6
    Veteran Mother****er Scrodzilla's Avatar
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    Legit. Learn how to use your bike before using your bike.

  7. #7
    Senior Member Titmawz's Avatar
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    Loctite works well... Make sure you let it cure for 24 hours

  8. #8
    Veteran Mother****er Scrodzilla's Avatar
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    Loctite is 100% unnecessary if the OP simply installs/tightens his cog and lockring correctly.

  9. #9
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    I wasn't the one who tightened the cog when it was put on, it was a shop but thanks for the advice.

  10. #10
    i smell bacon yummygooey's Avatar
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    I tighten my cog by riding up the biggest hill I can find, or by using the Rotafix method. Then I use a Park Tools HCW 17 to tighten the lockring down. No Loctite needed here.
    // yummygooey

  11. #11
    Constant tinkerer FastJake's Avatar
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    Quote Originally Posted by mashedpaters View Post
    I wasn't the one who tightened the cog when it was put on, it was a shop but thanks for the advice.
    Then the shop did it wrong. Your cog/lockring would not loosen if it was installed properly.
    Why "derailer" is the correct way to spell the gear-change mechanism: sheldonbrown.com/derailer.html

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    Quote Originally Posted by FastJake View Post
    Then the shop did it wrong. Your cog/lockring would not loosen if it was installed properly.
    The guy at the shop said backpedaling and skidding over time can do that, do you think he was covering his @ss? the cog did come off a few days after having the shop install a new cog.

  13. #13
    Constant tinkerer FastJake's Avatar
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    Quote Originally Posted by mashedpaters View Post
    The guy at the shop said backpedaling and skidding over time can do that, do you think he was covering his @ss? the cog did come off a few days after having the shop install a new cog.
    Definitely. The cog should not come loose from skidding, or "over time." It wasn't installed correctly. The dude was either lying or he doesn't know what he's doing. I would not go back to that shop.

    Here's the right way:

    - Grease the threads for the cog and lockring (optional, but I always do it.)
    - Thread on the cog by hand, making sure not to cross thread it.
    - Tighten the cog. My preferred method is to lightly rotafix it on, because you can get it pretty tight with not much effort.
    - Thread on the lockring by hand for the same reason as above.
    - Tighten the lockring with an appropriate tool. (I use a hammer and flat bladed screwdriver because I don't have the right tool. But that's the Wrong Way so I can't recommend it.)
    Why "derailer" is the correct way to spell the gear-change mechanism: sheldonbrown.com/derailer.html

  14. #14
    Veteran Mother****er Scrodzilla's Avatar
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    Quote Originally Posted by FastJake View Post
    I use a hammer and flat bladed screwdriver because I don't have the right tool.

  15. #15
    モㄥ工匕モ 爪モ爪乃モ尺 evilcryalotmore's Avatar
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    refer to signitures bro

  16. #16
    I go I go I go I go I go Cglenny's Avatar
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    Quote Originally Posted by fastjake View Post
    definitely. The cog should not come loose from skidding, or "over time." it wasn't installed correctly. The dude was either lying or he doesn't know what he's doing. I would not go back to that shop.

    Here's the right way:

    - grease the threads for the cog and lockring (optional, but i always do it.)
    - thread on the cog by hand, making sure not to cross thread it.
    - tighten the cog. My preferred method is to lightly rotafix it on, because you can get it pretty tight with not much effort.
    - thread on the lockring by hand for the same reason as above.
    - tighten the lockring with an appropriate tool. (ignore how i install my lockring because it is consequentially incorrect. Yagabunga! ;p)
    ;p ;p ;p

  17. #17
    Elitist carleton's Avatar
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    Quote Originally Posted by mashedpaters View Post
    The guy at the shop said backpedaling and skidding over time can do that, do you think he was covering his @ss? the cog did come off a few days after having the shop install a new cog.
    You are aware that you should regularly check to make sure that ALL bolts are secure because the are ALL subject to coming loose, right? You are using your bike in a manner for which it was not intended, therefore you need to check more often.

    Rotafix and Locktite are terribly bad ideas. They can be a pain in the butt to "undo" and at worst, permanently set the cog to the hub or even damage it.

    Learn how to properly use a lockring and a lockring tool.

  18. #18
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    thanks for the responses. I personally don't think loctite is difficult to undo with proper tools and I will definitely make sure everything is tight and properly fastened.

  19. #19
    aka Tom Reingold noglider's Avatar
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    What is the rotafix method?
    Please email me rather than sending me a private message. My address is noglider@pobox.com

    Tom Reingold
    New York City and High Falls, NY
    noglider's ride blog

  20. #20
    Pants are for suckaz HandsomeRyan's Avatar
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    Quote Originally Posted by noglider View Post
    What is the rotafix method?
    http://lmgtfy.com/?q=rotafix

  21. #21
    Senior Member FTWdave's Avatar
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    It doesn't matter how tight I get my cog and lockring on or who does it my **** always loosens up after a couple of months. I'm pretty sure it has alot to do with quality of the hub cog and lock ring... Or the fact that I'm a bad mother****er.

  22. #22
    aka Tom Reingold noglider's Avatar
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    Done that already, smart-tush.
    Please email me rather than sending me a private message. My address is noglider@pobox.com

    Tom Reingold
    New York City and High Falls, NY
    noglider's ride blog

  23. #23
    Paste Taster Retem's Avatar
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    Quote Originally Posted by FTWdave View Post
    It doesn't matter how tight I get my cog and lockring on or who does it my **** always loosens up after a couple of months. I'm pretty sure it has alot to do with quality of the hub cog and lock ring... Or the fact that I'm a bad mother****er.
    dude I am a heft fellow and had trouble stripping cheap hubs with cheap lockrings I started using eai deluxe cogs and dura ace lockrings and I have not had a hub strip or loosen since
    I am dyslexic so bear with my posts.... [SIGPIC][/SIGPIC]

  24. #24
    Senior Member FTWdave's Avatar
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    Quote Originally Posted by Retem View Post
    dude I am a heft fellow and had trouble stripping cheap hubs with cheap lockrings I started using eai deluxe cogs and dura ace lockrings and I have not had a hub strip or loosen since
    Yeah I'm pretty sure you get what you pay for with this kinda stuff.

  25. #25
    aka Tom Reingold noglider's Avatar
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    Yeah, a guy brought me his wheel to get the lockring off. It took some drastic measures to get it off, and thank goodness it was a Dura Ace lockring. That thing is made of some really hard steel.

    Someone give me a little boost and tell me what the rotafix method is. I've seen the rotofix sprocket now, but is that all it is? The video showed how it's useful for getting your lockring off or on. Does it have a use beyond that?
    Please email me rather than sending me a private message. My address is noglider@pobox.com

    Tom Reingold
    New York City and High Falls, NY
    noglider's ride blog

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