Originally Posted by vol
Isn't the inner tube prone to tear/damage/leak near the valve area if it's manipulated too frequently when putting on and removing the pump nozzle?
I'd estimate that I've pumped some tubes up over 100 times with no issues. That's just a guess though; I've never actually counted.
I fill my 700x25 tires before every ride. They usually drop from 95 to 85 psi.
My commuter's 700x35 tires get filled on Sunday and Wednesday evenings for my Monday, Tuesday and Thursday commutes. They lose ABOUT 5 psi from 90 to 85.
Beach cruiser tires are filled to 40psi whenver they get noticeably low, around 20 psi.