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  1. #1
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    fixing a broken water bottle braze-on or rivet

    I have an old mountain bike I'm fixing up and one of the water bottle cage rivets or braze ons (not sure which name is correct) spins in place. I can get the screw out, but how do I get the rivet/braze on out of the frame (which is Aluminum) and install a new one? Thanks in advance!

  2. #2
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    I's almost certainly a Riv-Nut or equivelent so try tightening the existing one. These things are a bit like Moly anchors

    Get a moderately long M5x.8 bolt, say 25 mm long or longer and a matching nut. Any decent hardware store or home center will have them. Thread the nut up the bolt and then thread the bolt well into the loose water bottle cage fitting Hold the bolt head stationary with a screwdriver, allen wrench or what ever tool is appropriate and thread the nut down against the top of the loose fitting. Then tighten the nut firmly against the fitting using an open end wrench.

    That should expand the fitting and lock it back in place.

    I've also heard of the same procedure being done using a qr skewer and a piece of small diameter pipe as a spacer. Put the spacer on the skewer and thread the skewer into the fitting until the spacer is snugly trapped between the fitting and the cam-lever end. Then carefully close the skewer lever to compress the fitting and tighten it up.

    The nut and bolt technique is easier.

  3. #3
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    Thanks HillRider! I'll give it a shot.

  4. #4
    Pwnerer Wordbiker's Avatar
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    Quote Originally Posted by HillRider View Post
    I've also heard of the same procedure being done using a qr skewer and a piece of small diameter pipe as a spacer. Put the spacer on the skewer and thread the skewer into the fitting until the spacer is snugly trapped between the fitting and the cam-lever end. Then carefully close the skewer lever to compress the fitting and tighten it up.

    The nut and bolt technique is easier.
    That technique is described at the Park Tool site.
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  5. #5
    cab horn
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    Quote Originally Posted by HillRider View Post
    I's almost certainly a Riv-Nut or equivelent so try tightening the existing one. These things are a bit like Moly anchors

    Get a moderately long M5x.8 bolt, say 25 mm long or longer and a matching nut. Any decent hardware store or home center will have them. Thread the nut up the bolt and then thread the bolt well into the loose water bottle cage fitting Hold the bolt head stationary with a screwdriver, allen wrench or what ever tool is appropriate and thread the nut down against the top of the loose fitting. Then tighten the nut firmly against the fitting using an open end wrench.

    That should expand the fitting and lock it back in place.

    I've also heard of the same procedure being done using a qr skewer and a piece of small diameter pipe as a spacer. Put the spacer on the skewer and thread the skewer into the fitting until the spacer is snugly trapped between the fitting and the cam-lever end. Then carefully close the skewer lever to compress the fitting and tighten it up.

    The nut and bolt technique is easier.
    There's also a specific tool that does said job, in one second or less.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  6. #6
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    Quote Originally Posted by operator View Post
    There's also a specific tool that does said job, in one second or less.
    Well worth it, IF you have a bike shop and are doing this repair on a regular basis. For a one-time fix, the nut and bolt or skewer technique is plenty good.
    Last edited by HillRider; 05-18-09 at 08:23 AM.

  7. #7
    cab horn
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    Quote Originally Posted by HillRider View Post
    Well worth it, IF you have a bike shop and are doing this repair on a regular basis.
    precisely

    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  8. #8
    Your mom
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    The Park technique is killer. Works like a charm, and a 2 minute fix for what can be a very annoying problem.

  9. #9
    aka Tom Reingold noglider's Avatar
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    I had some rivnuts put in a bike a few years ago. I now have another old steel frame with no fittings for a bottle cage. No one has the rivnuts any more. Where can I get them?
    Please email me rather than sending me a private message. My address is noglider@pobox.com

    Tom Reingold
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  10. #10
    Senior Member DannoXYZ's Avatar
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    If you find that you don't have a riv-nut and the braze-on just spins, you can drill it out and install a riv-nut. Plenty of people carry them :

    http://www.mcmaster.com
    http://www.aimfasteners.com
    http://www.aircraftspruce.com/search/search.php
    http://www.hansonrivet.com/w64.htm

    Don't put an aluminium riv-nut on a steel frame and vice-versa.

  11. #11
    A little North of Hell
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    nutsert/rivnut

    favorite little rivnut/nutsert tool.

    [SIGPIC][/SIGPIC]
    XXXI

  12. #12
    aka Tom Reingold noglider's Avatar
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    I'm willing to pay for someone to do this unless I can do it for an investment of $25 or less. Is there? If not, who can do it for me?
    Please email me rather than sending me a private message. My address is noglider@pobox.com

    Tom Reingold
    Residences: West Village, New York City and High Falls, NY
    Employer: Larry's Freewheeling, 301 W 110 St, New York, NY 10026
    Blogs: The Experienced Cyclist; noglider's ride blog

  13. #13
    You Know!? For Kids! jsharr's Avatar
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    Quote Originally Posted by noglider View Post
    I'm willing to pay for someone to do this unless I can do it for an investment of $25 or less. Is there? If not, who can do it for me?
    One thing you can do is order some Zefal Gizmos and forego having riv nuts installed. That is what I did to add a bottle cage to my Falcon.

    [ame="http://www.amazon.com/Zefal-Gizmo-Clamp/dp/B0009S6SIQ"]Amazon.com: Zefal Gizmo Clamp: Sports & Outdoors[/ame]

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  14. #14
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    Does the Park technique lock it in place for good?
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