Originally Posted by HillRider
Sydney has it absolutely right this time, They didn't "underinflate" your tires, they inflated them correctly. You overinflated them based on the rims you have. Further, they didn't assume you knew what you were doing, they did the job correctly and they couldn't be aware you would do the wrong thing after they finished.
Basically, you learned a cheap lesson.
You're right, now I know. But still, they didn't say anything about it- all they had to do was say "remember to inflate them to 80".
Are hookless rims unusual these days?
Is it safe to ride tires that are inflated less than the rated pressure? (road bike) Newbie questions.