Bulge on inner dual could mean it is low on air. what is its inflation? Could also mean it is overloaded because the outer is low on inflation.
How about posting all tire inflations (when cool and not in direct sun)
Well lit pictures always help.
Tire temperature is
sometimes interesting but more meaningful is tire pressure. I strongly suggest a TPMS.
To those who think checking tires in AM and at lunch stop is sufficient, I would ask how they would feel if all their gauges on the instrument panel stopped working 5 min after starting the engine?
After all you checked the oil pressure just after starting the engine why would you care what it is a couple hours later.
TPMS can pay for themselves with your first tire puncture. You can also learn if you have a leaking valve.