In article ,
says...

Hi,
Some time ago I mentioned I feared I suffered from overtraining syndrome.
Today I found out my specialized floor pump only inflated my tires to 2 bar,
whilst 7 bar was shown on the meter. I never checked the tire manually,
since I trusted the pump....
Boy, what a difference: I managed to get an average of 31.8 km/h in spite of
0 degree Celcius temperature.

That is a huge difference in tire pressure. I don't see how you did not get
pinch flats all the time.
------------
Alex