245/45 R18 Firestone Firehawk SZ90 variants

Weight index

Select: 100100

Speed index

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

This combination is not available.

MFSYes (245/45 R18 100 Y)

RunflatNo ( Kumho Ecsta PS71)

Firestone Firehawk SZ90 is a summer tyre made in total of 37 sizes, ranging from R15 to R15 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 245/45 R18 is 50mm wider than the narrowest dimension (195) and 10mm narrower than the widest one (255). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (245mm), which results in 110.25mm sidewall height. In 245/45 R18, there is only one possible speed index for Firestone Firehawk SZ90 - "Y", which is good for speeds up to 300 km/h.