Set tire to whatever PSI. Lean bike against wall. Grip the wheel with your palms close together on the tread. Push down with body weight through your palms in to the tyre.
If you can push it down to the rim easily, not enough air. If you find it really hard to compress the tyre, too much.
This is how it starts. A source told me there's a backdoor in the firmware and with the next update the government are going to start controlling your tyre pressures through the 5G. Wake up sheeple.
Set tire to whatever PSI. Lean bike against wall. Grip the wheel with your palms close together on the tread. Push down with body weight through your palms in to the tyre.
If you can push it down to the rim easily, not enough air. If you find it really hard to compress the tyre, too much.