HI...somehow the tire deflated at about 17mph and I heard a clicking sound. As soon as I smelled 'tire air' I got off and inspected.
About a .5" section of wheel edge, I call it the chrome. was bent and air was hissing out. I tried hammering it 'round' again to no avail.
I used a large cast iron C-clamp to give a steady squeeze and that didn't work.

I have the tire tools, patches, foot pump but don't know what a de-railer is. The tire shop by me should have a skull and crossbones as his company logo
I try to avoid that shop.
There is another shop in the next town but it is in a high crime area. So I avoid it.

Ill ask my son and his friend, both engineers and r DIY'ers if they. can fix it. His friend was on a Univ. racing club and is always tuning, fixing
his bike...me...hahahha.....the terms scare me. If it was a wooden bike I could fix it...hahaha
thanks in advance
Frank
after reading second post. All my tools hand and motor, car , appliances, Japanese knives Swiss made carving tools and my[ out door and inside back are always maintained. That is what my father did, that is what I do and that is what son does.
What I can't control is malfunction and obviously something did...second poster...thanks for the heads up . I appreciate all help. Even if it is bad help, none here yet, the person took the time to try ...I thank them also. take care.