Summer tyre tyre width 225 mm tyre cross section 45 rim diameter 17 inch speed ratings y up to 186 mph zr over 150 mph rolling resistance c wet grip a noise emission 71 db noise classification nc 2 rim protector sipe unidirectional tread listed since 21032014 0851 rim protection marking fp mfs fr fl fsl ml rpb tyre size required 22545 r17