Dear friends, I am in despair, I have renewed the wheel bearings and brake discs and now the whimpering is not so strong anymore but still there. Yesterday I put the winter bikes on again and it seemed to me that the narrower mature the wummern became quite minimal. put back on summer I have always only a bike and then made test drives until I came to the fault side VA LI. Now I replaced the wombling wheel against the right intact wheel and VA RE a winterer In addition, I have to say that the winter bikes have the following sizes: 4 x 17 inches with a tyre width of 225 The summer: 20 inch VA 255 35 20, HA 285 30 20 Michelin Super Sport not 4 years old, all rims freshly balanced and checked again by the workshop, everything chic. The track is also not a year old, the steering wheel does not trembl and the whole wummers between 20-30 Km/h. Do you have tips, I am at the end