Having optimised the continental topcontact winter ii vectranbreaker 700c folding commuting tyre further refining it with a vectran breaker 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 handling characteristics the tread mixture is directly based on our pkw snow tyres the tyre operates at its best at temperatures between 25 degrees and 7 degrees c where other mixtures no longer h