We have optimised the top contact winter ii further refining it with vectranbreaker anti puncture belt beneath the tread as well as giving it a foldable bead this optimises its weight reducing the rolling resistance thus increasing speed and handling characteristics the tread mixture is directly based on our pkw snow tyres the tyre operates at its best at temperatures between 25c and c where other mixtures no longer have any grip the top contact winter ii premiums39s proven com