During the tyre change yesterday I had to find out that my front tyres already left after a summer (about 40 tkm). However, very uneven, in the middle is a “wave” and on the inside they are at the edge down to zero, the rest still has about 30%. I haven’t seen such a pattern yet, does someone have an idea what it can be? The rear tyres still have about 70%. Vehicle is a golf 6, year 2012, 316 tkm, tires Conti SportContact5 215er, 17 inch (I don’t have exact dimensions right now), Produced 41KW 2016.