Summer tyre tyre width 225 mm tyre cross section 50 rim diameter 17 inch speed rating w up to 168 mph rolling resistance c wet grip a noise emission 71 db noise classification nc 2 rim protector sipes asymmetrical tread 4 longitudinal grooves listed since 25112015 1159 rim protection marking fp mfs fr fl fsl ml rpb tyre size required 22550 r17