Winter 4x4 tyre kennzeichnungen ms snowflake symbol tyre width 235 mm tyre cross section 70 rim diameter 15 inch load index 103 up to 875 kg speed rating s up to 112 mph rim protector rolling resistance e wet grip e noise emission 73 db noise classification nc 3 installation all round tyre sipe asymmetrical tread customer benefits low tread deterioration main strength high traction