Hello :-)), I have been fighting for a few months with a problem that makes me really desperate. Vibration in the area of 140 KMH on the highway, it creeps already at about 100-110 and is strongest at 140. At 160-170 it gets quieter and better again. Small history: I put my car deeper last year, installed a coilover suspension, afterwards I was measuring the track. Everything nice and good and the car ran until then without pr obleme and there were absolutely no vibrations at all, at the time still with my winter bikes. Then I got rims for the summer in connection with tires.. with an acquaintance let me balance and then it went off, vibrations already from 70 KMH… Then I was with him a second time and had to be balanced again, which however also did not lead to success again. However, I had to learn that he never leaves his machine oaks. Afterwards to a the tyre compartment service… They found out that the wheels were really badly balanced, weighed again and it was much better, however, then the vibration remained with the said 140!! I strongly assume that this is due to the strong vibration at the beginning a consequential damage. So it started from there, drive shafts changed, all wheel bearings changed, all wheel hubs changed, carrying joints changed. Bushings of the damper absorption changed.. I also in the meantime scho n had raised my winter bikes and tried it with them, no difference! Also I borrowed a wheel set from a friend, exactly the same result, it just doesn’t change anything. I don’t think that all three wheel sets are not in order now… That would be very strange. However, I didn’t have a wheel set that is brand new for testing either. I had my winter bikes balanced by now and tried it again and as I said, since w The brake discs have to be measured with a measuring clock, not a rash. However, the brake discs do not look so good anymore, they already have one or the other groove and have to be replaced quite soon. In addition, I have overheated the brake a bit during a brisk mountain descent… now the question would be whether the discs may have a high stroke or something similar due to the overheating. we all checked, all look good yet and have neither cracks nor game. Track rods also look good.. I am honestly now really stunned and rather desperate. Who knows something and can help me further? I would be really very grateful for every tip!!! LG Jey