255/55 R18 Nokian Powerproof SUV variants

Weight index

Select: 109109

Speed index

Select: Select, Y (300 km/h)Y (300 km/h)

This combination is not available.

MFSNo

RunflatNo

Nokian Powerproof SUV is a summer tyre made in total of 29 sizes, ranging from R17 to R17 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 255/55 R18 is 20mm wider than the narrowest dimension (235) and 40mm narrower than the widest one (295). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (255mm), which results in 140.25mm sidewall height. In 255/55 R18, there is only one possible speed index for Nokian Powerproof SUV - "Y", which is good for speeds up to 300 km/h. Latest test in 255/55 R18 was held by Autobild in 2020, where Powerproof SUV received rating "Satisfactory" and finished on the 9. place. It was tested on a BMW X5.