Summer tyre tyre width 205 mm tyre cross section 55 rim diameter 16 inch speed rating y up to 186 mph rolling resistance f wet grip b noise emission 71 db noise classification nc 2 rim protector sipe asymmetrical tread listed since 14032007 1321 rim protection marking fp mfs fr fl fsl ml rpb tyre size required 20555 r16 erstausrstung porsche