255/35 R18 Pirelli Powergy variants
Pirelli Powergy is a summer tyre made in total of 58 sizes, ranging from R17 to R17 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 255/35 R18 is 50mm wider than the narrowest dimension (205) and 0mm narrower than the widest one (255). This tyre profile of 35 means the sidewall height of the tyre is 35% of the tyre width (255mm), which results in 89.25mm sidewall height. In 255/35 R18, there is only one possible speed index for Pirelli Powergy - "Y", which is good for speeds up to 300 km/h.
Pirelli Powergy is made in 58 sizes, starting from 205/40 R17 up to 255/40 R20.
