Originally Posted by
Phatman
Man, that Silca calculator seems way off for me. The front pressure seems too high and the rear seems too low. It recommended 44F/46R for 100% road on 40mm tires, but for that I'm at ~40F/60R. I'll drop to 35F/50R if I'm on mostly gravel, and I'll adjust the pressures somewhere in between if I'm mixing it up.
As already stated, that is a significant difference R to F. If you've been riding this way for a while, it might feel "normal" because you are adjusted to it. Have you considered giving the slice pressures a chance, and seeing how they feel/ride? It's just air and a 2 minutes of your time to adjust the pressures. Or, look up "15% drop" and find a chart.