Summer tyre tyre width 225 mm tyre cross section 45 rim diameter 17 inch speed rating w up to 168 mph rolling resistance f wet grip c noise emission 71 db noise classification nc 2 runflat rim protector sipe asymmetrical tread listed since 22042013 1419 rim protection marking fp mfs fr fl fsl ml rpb tyre size required 22545 r17 erstausrstung bmw