Winter tyres tyre width 215 mm tyre cross section 45 rim diameter 16 inch load index 90 up to 600 kg speed rating v up to 149 mph installation all round tyre rolling resistance c wet grip c noise emission 72 db noise classification nc 2 runflat rim protector sipe asymmetrical tread runflat identification ssr csr sst continental run flat technology ssr self supporting runflat tyre rim protection marking fp mfs fr fl fsl ml