SO my wife was pumping up her tires getting ready to go on her second ride on her new bike. I was in the other room doing something else, and she comes out with this big frown on her face. She says she thinks she just popped her tire! Sure enough, pulling and pulling with all her might to get the bike pump off the stem, the tire tube tore at the base of the stem from the pulling. These stems are threaded, and the part of the pump that goes over it NEVER wants to come off after you are done pumping.
Anyway, at least she learned how to change a flat tire
