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Presta valve inner tube replacement
Simone Deyme and 2 other contributors
Last updated on Sep 2, 2026
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Community-Contributed Guide
An awesome member of our community made this guide. It was not created by iFixit staff.
What you need
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Locate the faulty, leaking valve.
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Unscrew it counter-clockwise from the part indicated by the red arrow in the image.
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You can use the specific tool, which I have linked for purchase, or simple small needle-nose pliers.
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Once unscrewed, pull out the faulty valve.
Ask FixBot
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Notice the difference between the old valve and the new one.
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Insert the new valve in place of the old one. DO NOT OVERTIGHTEN THE VALVE!
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Inflate the tire.
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Use a leak detector (soapy water or simply saliva) to check the seal of the new valve.
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Put the black plastic cap on as protection for the new valve.
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Great job, you have completed the valve repair!
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To reassemble your device, follow these instructions in reverse order.
