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Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

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Old 06-04-07, 11:52 AM   #1
gholt
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Tube Stem air Stop

When I took my pump off the bike tube, all the air shot out of the tube, when I looked at it, the air stopper came completly out. My question, is there a way to replace this part, or is the tube gone. It was a brand new tube that has not have that much time on it and I would like to keep it if the part is relativley cheap. I couldn't find the part anywhere. and I could not see it in the floor pump either. I wondere if the pump pulled it off.

Any help would be great.
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Old 06-04-07, 12:14 PM   #2
Al1943
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If it's brand new take it back to where you got it and ask for a replacement or a refund.
Most presta valve tubes do not have removeable valve cores, a some do.
I think all schrader valve tubes have replaceable valve cores.

Al
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Old 06-04-07, 12:16 PM   #3
Bill Kapaun
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It's the valve core.
You can buy a new one at an auto parts store, but if you go to a tire shop, they'll probably give you a used one. Take your tube with you and they might even install it if you don't have the tool.
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