245/45 R17 Riken Ultra High Performance variants
Riken Ultra High Performance is a tyre made in total of 55 sizes, ranging from R17 to R17 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 245/45 R17 is 40mm wider than the narrowest dimension (205) and -50mm narrower than the widest one (195). 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 R17, there is only one possible speed index for Riken Ultra High Performance - "W", which is good for speeds up to 270 km/h.
245/45 R17 99 W
Riken Ultra High Performance is made in 55 sizes, starting from 205/40 R17 up to 195/55 R20.
