Winter 4x4 tyre kennzeichnungen ms snowflake symbol tyre width 225 mm tyre cross section 60 rim diameter 17 inch load index 103 up to 875 kg speed rating h up to 130 mph rim protector rolling resistance e wet grip e noise emission 76 db noise classification nc 3 installation all round tyre sipes symmetrical tread unidirectional tread key performance wet grip snow grip comfort high traction