Some presta pumps are not all that easy and some with dual fitting (fit shrader) can cause problems. So don't feel bad if you have to take your floor pump into LBS and have them show you.

Eden,

140psi??? Is it continental tires?? You said you are small around 5 feet so you must be pretty light. At140PSI the tire is going to feel like a solid tire or worse like riding on the rims. No? I've only inflated my tires to 120PSI and it felt so rough while riding. Granted for TT you want to minimize the rolling resistance but 140PSI??

smilingcat