Sorry, that doesn't make any sense. ........... How could it?
As I read it, the OP understands that the number on the sidewall is the maximum to which you should go. Nowt wrong with that, so surely going into the technicalities of ideal pressure really isn't an issue?
I am trying to point out that if you have absolutely no idea what pressure to put in your tyres then checking the max to make sure you aren't unintentionally about to make your tyres go POP by inserting double the recommendation is probably a good starting point..... simples! It isn't rocket science.
The PSI figure printed on the tyre is usually the maximum safe tolerance, not really a recommendation for how much air to put in. Realistically, you should be inflating your tyres to a figure depending on your bodyweight, the type of riding you do and the type of roads you are riding on.
Aesthetically, I usually line up the lettering so it sits above the valve, but there's no practical reason for doing it.
my general rule of thumb being a powerful chap at 96kg is that on my thin race tyres such as pro4 i run them at about 5-10 PSI below there max rate. Works for me, doubt i could run them less and not get snake bite punctures. However I have read elsewhere running tubeless might not be such a hassle after all!
yep think may try 25c next time albeit my fixed is a very close clearance frame so its tight with the raceblades as well.