245/40 R18 Riken Ultra High Performance variants

Weight index

Select: 9797

Speed index

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

This combination is not available.

MFSNo

RunflatNo

Riken Ultra High Performance is a tyre made in total of 55 sizes, ranging from R17 to R17 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 245/40 R18 is 40mm wider than the narrowest dimension (205) and -50mm narrower than the widest one (195). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (245mm), which results in 98mm sidewall height. In 245/40 R18, there is only one possible speed index for Riken Ultra High Performance - "Y", which is good for speeds up to 300 km/h.