Originally Posted by
icemilkcoffee
Frankly if you have to exceed 90psi, it's probably time to consider moving up to the next wider tire. When I am rolling on 25mm tires, 90psi feels OK and 100psi feels like my dental fillings are going to come off.
Lots of variables involved. Wheel type, width, frame material and type, rider weight, etc. I use what works for me and my ride, a 2017 Roubaix that absorbs road shock really well.