Originally Posted by Adv Grifter
It's pretty rare ... but out of round or lop sided tires do happen on occasion.
Double check to make certain the tire is fully seated into the rim. Sometimes you need over 60 PSI to have it "Pop" and fully seat.
What kind of tire is it?
Kenda 270 tire.
Looks fully seated all the way around the rim on both sides? Could it still need seating?