• I think you don't change the tube, you pull it out, patch it and shove it back in, then replace it at home or get a bike mechanic to do it at a more convenient time, eg about twenty years after the original puncture when the tube is more patch than rubber.

  • Hah! I got the patch-not-replace tip here (many years later). Added to the immeasurable faff of taking it apart, was the discovery that a 26 inch tire is not always a 26 inch tire: I’d bought a Marathon Plus 35-559, thinking it would mean never having to change the tube again. Didn’t fit (Dutch bike took 1 3/8 tires). It’s still knocking around in my parent’s garage.

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