Schwalbe ... lot's of defective tire threads for that brand on the forum. I've had my issues as well
this is how it arrived in the mail. they said try it out & if it doesn't get straight we'll send another. it mounts OK, so I keep using it every winter
this was a tire I bought used so when this happened I just chucked it. but it ruined my day
cpl threads ...
https://www.bikeforums.net/bicycle-m...defective.html
https://www.bikeforums.net/bicycle-m...tallation.html
https://www.bikeforums.net/bicycle-m...out-round.html
https://www.bikeforums.net/commuting...n-related.html
https://www.bikeforums.net/bicycle-m...med-tires.html