Originally Posted by
WhyFi
Are you really heavy? What calculator are you using? The ETRTO hookless standard has a max of ~73psi.
As far as hitting a wall at ~40psi, I got nuthin'.
It's definitely curious, but so far, Giant/Cadex is seemingly shrugging off of ETRTO.
https://www.giant-bicycles.com/global/tire-pressure