I use in the size of 255x55x18 on the Tuareg. Winter 19-20 failed. Tires were from November to April. Used in Hong Kong and often outside the city. It’s predictable on ice, rowing on snow, I checked it when the weather pleased with snowfall. Quiet, not boisterous. Brakes normally. In comparison with Conti, I did not notice the difference. All spikes are in place. A lot of negativity in the reviews regarding the loss of spikes. Mine was made in Germany, I know that smaller radii fly at other factories, I think the quality comes from here. Price for autumn 19, 8500 per piece.