Sidewall strength vs pressure vs weight savings

The bad one with the thin sidewall was the Specialized Purgatory Control 27.5x3.0.
The good one that I still ride is the Schwalbe Nobby Nic 27.5x2.8 EVO APX TLE TS.
It has an apex-reinforced sidewall: https://www.schwalbe.com/files/schwalbe/userupload/Images/Produktfeatures/2016/apex/apex.jpg
(Apex carcass comes from motocross tires)
More infos on it here: 650B 275 26+ 275+ Felgen Reifen Erfahrungen - #148 by Eric_aus_Chemnitz
If you can read german, I made review on both here: 650B 275 26+ 275+ Felgen Reifen Erfahrungen - #150 by Eric_aus_Chemnitz

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