Join Date: Sep 2007
Location: Dallas area, Texas
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Due to the thinner tube and lower volume, it's normal for bike tires to leak down a bit over a couple of days. That isn't a tube defect, just a way of life. The normal solution is just check the air every time you go ride.
If they're going plumb flat overnight, you've probably got a sticker that you haven't found. Pull the tube out, inflate it, hold it under water in the sink, look for a tiny trail of bubbles.
You can buy "heavy duty" tubes that are super thick (and also super heavy). They are intended to avoid flats from pointy objects, not from regular leakdown.
I've used tubes from the local bike shop, from REI, and from Walmart, and haven't noticed any difference across the brands in how fast they leak down.
"be careful this rando stuff is addictive and dan's the 'pusher'."