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  1. #1
    Atlanta Road Racer dgearhart's Avatar
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    Specialized Tarmac SL3 will full carbon everything/everywhere and Zipp 404 tubulars for racing. Cyclocross bike is a 56cm carbon Blue CXc with carbon everywhere.
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    Zipp 404 Valve Extender Noise

    I am running Zipp 404 Tubulars for races, but I noticed that the valve extender creates a knocking/clicking noise as it moves inside the rim. Anyone come up with a good way to remove the noise? I was thinking of applying a little rubber cement to the valve extender to reduce the noise, but that sounds like a bad idea. Anyone come up with a more elegant fix?
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  2. #2
    Carpe Diem bdcheung's Avatar
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    electrical tape around the valve extender.
    "When you are chewing the bars at the business end of a 90 mile road race you really dont care what gear you have hanging from your bike so long as it works."
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  3. #3
    . botto's Avatar
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    just used valve extender for the first time. now i know why smoke was never a fan.

  4. #4
    The mods changed this... damocles1's Avatar
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    Wrap a rubber band around the valve, around a spoke and then back to the valve.

  5. #5
    i got nothing. Crash716's Avatar
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    if you can hear that during a race you are not working hard enough. just saying.

  6. #6
    W.W.DZ.D? cedricbosch's Avatar
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    Quote Originally Posted by Crash716 View Post
    if you can hear that during a race you are not working hard enough. just saying.
    Uhh....
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  7. #7
    Just Peddlin' Along SaddleBags's Avatar
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    Quote Originally Posted by bdcheung View Post
    electrical tape around the valve extender.
    What bd says:
    http://www.cyclingnews.com/photos/20...armacSL2_valve

  8. #8
    Senior Member grom's Avatar
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    Quote Originally Posted by dgearhart View Post
    I am running Zipp 404 Tubulars for races, but I noticed that the valve extender creates a knocking/clicking noise as it moves inside the rim. Anyone come up with a good way to remove the noise? I was thinking of applying a little rubber cement to the valve extender to reduce the noise, but that sounds like a bad idea. Anyone come up with a more elegant fix?
    Zipp type valve extenders? Or the extender with the valve built in? With the Zipp type, a little teflon tape on the valve threads seems to keep the noise down. Don't forget to use a needle nose to lock the nut on the valve in the open position. Otherwise, when you screw the extender on it will eventually close the valve. I've never had a problem with noise from the other kind.

  9. #9
    Atlanta Road Racer dgearhart's Avatar
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    Unfortunately, I didn't use Zipp's carbon extenders which would have been quieter. I used metal Bontrager ones.... I'll go with some electrical tape at this point. Thanks!
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  10. #10
    Atlanta Road Racer dgearhart's Avatar
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    To the poster re: "not going fast enough"....no, I don't hear them in a race because I am going too fast. I race Cat 3's in the Southeast, and they are pretty fast down here. However, it is annoying to hear during warm-ups and pathetic to hear on $$$ race wheels.
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  11. #11
    . botto's Avatar
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    Quote Originally Posted by dgearhart View Post
    To the poster re: "not going fast enough"....no, I don't hear them in a race because I am going too fast. I race Cat 3's in the Southeast, and they are pretty fast down here. However, it is annoying to hear during warm-ups and pathetic to hear on $$$ race wheels.
    where else have you raced?

  12. #12
    Atlanta Road Racer dgearhart's Avatar
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    Northern California - moved to ATL 2 years ago. Fast guys there too. Different racing, more road races there, more crits here. There's a reason why Speedweek is here. GA, NC, SC are crit heavy areas....come try it sometime. The speeds at Athens Twilight are right up there with other parts of the US, I've seen races all over.
    Last edited by dgearhart; 05-05-09 at 12:05 PM.
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  13. #13
    Senior Member Allegheny Jet's Avatar
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    A short piece of electrical shrink tubing in a size a little larger than the valve extender's width. Put the tubing over the top of the extender and use a match to shrink the tube to make a molded fit over the extender. I have done something simular by using the shrink tubing over cable housing and shrunk it onto the casing where it touches the headtube.
    oldschool areodynamic brick

  14. #14
    Long-time Curmudgeon DrPete's Avatar
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    The valve extender shouldn't be clicking around.

    I had a clicking in my 404's that came from the QR skewer spring flicking against some part on the hub--I loosened the skewer spring's grip on the QR axle and it went away.

    Personally, I can't wait to get a Zipp disc so I can bask in the "swarm of angry hornets" noise as I race.
    "Unless he was racing there was no way he could match my speed."

  15. #15
    Atlanta Road Racer dgearhart's Avatar
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    Thank you for the shrink tubing idea...genius.

    Yes, it shouldn't be clicking....but it does....even to the pro's as noted in a prior comment....captured in this picture:
    http://www.cyclingnews.com/photos/20...armacSL2_valve
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