No, breaking does not change vibration. it is als not continuously, I remarked that it is at 55-60mph, downhill or when tha highway is slightly bowing. I also measured now tire pressure and one of the rear tires was 34.5 (???) and the other 32 PSI. Tomorrow I am also going to rotate rear to front. I have Pirelli 225/55 R16 95W, tires