Originally Posted by
Lombard
This may be true, though car tires don't lose more than about 1 PSI per month as opposed to road bike tires that can lose 10 PSI in a week. It mostly has to do with volume.
I agree that a vastly larger volume, than typical bike tires have, will mean that the natural pressure loss will be less noticed. However, I have attributed natural loss much more due to higher pressures (2 to 5 times more than most cats need) and thinner amounts of rubber between the pressured air and the outside air. Andy