Nexen N Blue 4 Season 2 is a allround tyre made in total of 22 sizes, ranging from R17 to R17 - 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 30mm narrower than the widest one (245). 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 Nexen N Blue 4 Season 2 - "W", which is good for speeds up to 270 km/h. In 215/55 R17, N Blue 4 Season 2 usually competes against Sport Master, which is a tyre from Linglong with a rating of 64%, compared to 62% of the Nexen in question.