mature has delen……how does that come about?!

so now it has caught me as well. mature front right is broken. today brake and sprinkle joints renewed, rim down and amazed…. when mature it is a kumho ku31 in 215/35/18. raised on a 8*18 postert rim. everything entered, nothing grinds etc. now the mature on the INNER SEITE 2 dellen. it looks “depleted” .. the rim runs to 100% round. air pressure lt kumho tire release 3,5bar. that the mature must have got off by itself. I just ask myself how ma n such a thing gets? the dellen are so extreme that the mature has squeezed out so far that he has ground on the spring plate.