Summer tyre tyre width 225 mm tyre cross section 45 rim diameter 17 inch speed rating w up to 168 mph rolling resistance c wet grip b noise emission 70 db noise classification nc 2 rim protector sipe asymmetrical tread listed since 05052009 1315 rim protection marking fp mfs fr fl fsl ml rpb tyre size required 22545 r17 erstausrstung mercedes