Hello Leutz, every few seconds from 100km/h a flutter goes through the whole car. Mainly ahead. I suspect it is due to my sucked-out tires. Have front General XP 2000 P235 60 R15 98T and rear General XP 2000 P275 60 R15 107T. Has anyone experienced anything comparable? I guess new tires incl. balancing could solve the problem. The above mentioned tires are led as off-road tires. Is there any experience with these tires in the winter season Thanks to the municipality of ALTAVATA