Winter 4x4 tyre kennzeichnungen ms snowflake symbol tyre width 265 mm tyre cross section 70 rim diameter 15 inch load index 112 up to 1120 kg speed rating r up to 106 mph rim protector rolling resistance f wet grip f noise emission 73 db noise classification nc 2 installation all round tyre sipe unidirectional tread customer benefits equal grip distribution main strength high traction