Summer tyre tyre width 225 mm tyre cross section 45 rim diameter 17 inch speed rating y up to 186 mph rolling resistance c wet grip b noise emission 71 db noise classification nc 2 rim protector sipe asymmetrical tread listed since 13022015 1024 rim protection marking fp mfs fr fl fsl ml rpb tyre size required 22545 r17 erstausrstung mercedes