Pirelli Cinturato P7 C2 is a summer tyre made in total of 84 sizes, ranging from R16 to R16 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 215/55 R17 is 10mm wider than the narrowest dimension (205) and 40mm narrower than the widest one (255). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (215mm), which results in 118.25mm sidewall height. In 215/55 R17, there is only one possible speed index for Pirelli Cinturato P7 C2 - "V", which is good for speeds up to 240 km/h. In 215/55 R17, Cinturato P7 C2 usually competes against Ecocontact 6, which is a tyre from Continental with a rating of 63%, compared to 92% of the Pirelli in question.