Originally Posted by
JeremyCherfas
I confess, I had never thought to adjust for the weight on the tyres. I found a link on goodyearbike.com to a tire pressure calculator that looks to be quite handy.
I looked at the Goodyear calculator, It's a variation of the
SRAM calculator. The SRAM calculator doesn't force you to choose a Goodyear tire model to get a recommendation. I have used the
Rene Herse calculator, which is simpler. I'm sure there are lots of these available.
You need enough pressure in your tires to avoid a pinch flat and to have a stable, non-wallowing ride. Try the calculators and then experiment.
Have fun!