As they wear out, efficiency is lost, and the grip becomes worse. Increasingly, ABS and ESP are working, sections from a traffic light are not in the most active mode.
It works much worse with repair spikes than with 50% of native spikes, as if they were not there.
Native spikes are so hooky and evil that bare asphalt tears them up by the roots, with active driving, you need to be as careful as possible.
It is almost useless at temperatures from -5 and warmer - it becomes sour, you have to pump harder, the asphalt does not hold, all the more wet.
It became noisy, but did not understand at what point. Moreover, the hum comes from a particular wheel at a speed of around 100+ km / h, I believe there was a marriage of rubber. They twisted it on the stand, the disk is even, but the rubber itself on one wheel is curved, dancing, I think it is buzzing.
They write that the sidewall is weak, but did not notice any problems. But I don’t like that it “sags”, it looks like it’s always let down.
Became very expensive.