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Old 04-21-20, 05:44 AM
  #286  
hokiefyd 
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Originally Posted by KilianPR82
One more question when buying spare tubes I need to buy the exact sizes right like my tires are 700x38 I need a tube that is that same size.
You don't need the exact size, no. In fact, many tubes are marked with multiple sizes. You might find a tube that fits 700x35-45 for example, which would work fine for 700x35, 700x38, 700x40, 700x42, 700x45, or anything in between. You can even use smaller tubes (like 700x28 or 700x32) if that's all you can find. Theoretically, a smaller tube will stretch slightly more and could be slightly more vulnerable to punctures, but I'm not sure this is a practical consideration.
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