Tire Pressure Issue

[Mr. Bloom]

I'm no scientist or anything.

Shouldn't there come a point when the tube is under pressure that the interstitial spaces are too small for air molecules to go through?

Karen: Such big words! Are you sure you're not a scientist?

ehirsch: My tires are 100 psi. bikeleague training says not to overfill, so I don't (although I used to...)

The bikeleague training also says to check air pressure before each ride. I do since I'm alone during the week and don't have many to call for help if I get a flat and get stuck out past dark.