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First ride on some new S-Ones tomorrow. First time I've ever used such wide tyres (on a road bike), so a little unsure on pressures. Was thinking 75psi rear, 65psi front. Sound about right? (They're 30c. I weigh 80kg and normally run my 25c GP4000s at 100psi rear, 90psi front.)
Sounds ok to me, I'm a bit heavier and run mine both at 65ish. Fantastic tyre btw, I reckon I bore everyone about how good they are. I doubt I'll go back to a much thinner tyre and every road bike I consider from now on will need accommodate them!
I run 70 and 75 in mine and I'm 68kg, but I have only tried them once.
I'd probably run them a little lower, about 50psi each end.
The chart on here is quite a good guide for pressures on wider tyres:
https://janheine.wordpress.com/2016/03/09/tire-pressure-take-home/