Flat tires

The odd thing is that the tire didn’t actually lose pressure after I ran over this. I only noticed because of the noise of it hitting the fender each time it went around. This was a brand new tube too, and the first front flat I’ve had on this bike in a year. I patched it, but looks like the patch isn’t holding. The tire was only at 20ish PSI this morning, and was soft again when I went to ride home today.
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