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Thread: Leaking valve?

  1. #1
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    Leaking valve?

    I haven't ridden my bike for a year, I've come back to it and I can't inflate one of the tyres, it seems to be leaking air at the base of the valve. I suspect just squirting superglue all the way around it is a bad idea?!!

    I've never taken a tyre off before - is the valve attached to the inner tube and if I buy a replacement inner tube will it come with a valve? If not, I suspect the problem is where the valve joins the inner tube but can't seem to find a puncture repair guide on this area - can anyone offer one?

    Thanks, and apologies if this seems like a standard query, honestly I have tried searching!

  2. #2
    Senior Member Retro Grouch's Avatar
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    You need to take the tire off and replace your inner tube. They come in lots of sizes and two valve diameters so be sure to get the right one. If they're not too busy you might be able to get a bike shop to show you how.

    My bet is your problem is the result of not keeping your tires properly inflated. That's common. When you do that the tire kind of "walks" around the rim and pulls the inner tube valve stem over at an angle. Eventually it tears the inner tube at the base of the valve.
    Last edited by Retro Grouch; 03-29-08 at 02:27 PM.

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    Ok, thanks - so it sounds like a new valve would come attached with the new inner tube?

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    Senior Member 04jtb's Avatar
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    Quote Originally Posted by apoth View Post
    Ok, thanks - so it sounds like a new valve would come attached with the new inner tube?
    Yeah, they are attached, and you will get a new one with the tube
    Quote Originally Posted by cc700 View Post
    i jam my thumbs up and back into the tubes. this way i can point my fingers straight out in front to split the wind and attain an even more aero profile, and the usual fixed gear - zen - connectedness feeling through the drivetrain is multiplied ten fold because my thumbs become one with the tubing.
    A group for all Dawes Galaxy owners to give and recieve information about them
    http://flickr.com/groups/dawes_galaxy/

  5. #5
    Low car diet JiveTurkey's Avatar
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    Quote Originally Posted by apoth View Post
    Ok, thanks - so it sounds like a new valve would come attached with the new inner tube?
    Yes, it is all one piece. If you're unsure of the size tube you need, you can bring the old tube and tire to a shop.

    Along with tube/tire diameter (most bikes use 700c/27" road or 26" MTB) and tube width (e.g. 25mm/1" - 28mm/1-1/8", 1.75" - 2.125"), there is also Schrader valve (like on a car) vs Presta valve (long and skinny).

    Here's some really good info, too:
    Tire sizing: http://sheldonbrown.com/tire-sizing.html
    Schrader/Presta: http://sheldonbrown.com/tires.html#tubes

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    Great stuff, thanks guys.

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    Tyre size was written on the side, popped out this morning and picked up an inner tube and a couple of tyre levers and I'm good to go again now

    Thanks again.

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