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Selecting Correct Inner Tube

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Selecting Correct Inner Tube

Old 10-30-20, 04:23 PM
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curtarseneau
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Selecting Correct Inner Tube

I need to replace the tubes on a 20" mountain bike. The bike has 20 X 2.8 tires and 20 X 2.20/2.50 tubes. The tubes I have in stock are 20 X 2.00/2.25. Are these acceptable to use in these tires or do I need to source the same tubes removed?
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Old 10-30-20, 04:51 PM
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aggiegrads
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If you have a 2.25, it will work, but will not be as reliable as a larger tube.
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Old 10-30-20, 05:25 PM
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Originally Posted by aggiegrads View Post
If you have a 2.25, it will work, but will not be as reliable as a larger tube.
Meaning that a smaller tube will be stretched thinner and be more easily punctured, but absent a puncture (which might put a hole in a bigger tube also) it should work just fine. Many folks like using smaller tube stretched thinner because they save a little weight. You might consider getting a tube with a closer fit to keep in stock for next time.
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