Summer 4x4 tyre marking ms tyre width 255 mm tyre cross section 75 rim diameter 15 inch load index 109 up to 1030 kg speed rating s up to 112 mph rolling resistance e wet grip b noise emission 75 db noise classification nc 2 installation all round tyre sipe symmetrical tread customer benefits equal grip distribution low tread deterioration key performance brake perfomance high traction