GoodYear Efficientgrip SUV is a summer tyre made in total of 122 sizes, ranging from R16 to R16 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 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 R18, there is only one possible speed index for GoodYear Efficientgrip SUV - "V", which is good for speeds up to 240 km/h. In 215/55 R18, Efficientgrip SUV usually competes against Blizzak 6, which is a tyre from Bridgestone with a rating of %, compared to 0% of the GoodYear in question.