Was very happy with the purchase! An absolutely new model, an innovative spike, one of the leading leaders in the production of winter tires, I really wanted to test it in action!). and an extremely careful driving style without sharp accelerations and braking), minus 10% of the spikes! . braking on dry roads and on ice is at a height! What is the result - mileage 4000, I change shoes at a tire fitting shop, I calculated the loss of studs, minus 130 pieces on the leading front ones! Tire workers (actually like me) were shocked and shrugged. No one expected this from Conti !. Now I wrote a claim to the manufacturer, if I can’t solve the problem, I will be very upset and will never buy it myself and will not advise anyone to buy tires from this manufacturer . while waiting for good quality from one of the leading manufacturers, so far only disappointment (. I hope someone my experience and feedback will be helpful.