I am not sure if I am having the same issue. So I took delivery of my MSLR three weeks ago with the 21 summer tires and been driving them carefully till I get the 19 AS hopefully next week
anyways ever since I took delivery I notices when I am reversing or turning especially when car and or tires are cold a jolt or thudd but not click which I felt is like when a tire skids and tractions intervene to stop it. Always explained it from the summer rubbers in the cold. very pronounced when reversing while still cold and turning while reversing. never in straight line. Again not click more like traction jerking to stop tire skid. I am assuming that will go away when I get my 19s all seasons or at least hope so.
anyways ever since I took delivery I notices when I am reversing or turning especially when car and or tires are cold a jolt or thudd but not click which I felt is like when a tire skids and tractions intervene to stop it. Always explained it from the summer rubbers in the cold. very pronounced when reversing while still cold and turning while reversing. never in straight line. Again not click more like traction jerking to stop tire skid. I am assuming that will go away when I get my 19s all seasons or at least hope so.