225/50 R17 Royal Black Royal Performance variants
Royal Black Royal Performance is a tyre made in total of 68 sizes, ranging from R15 to R15 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 225/50 R17 is 30mm wider than the narrowest dimension (195) and 60mm narrower than the widest one (285). This tyre profile of 50 means the sidewall height of the tyre is 50% of the tyre width (225mm), which results in 112.5mm sidewall height. In 225/50 R17, there is only one possible speed index for Royal Black Royal Performance - "W", which is good for speeds up to 270 km/h.
Royal Black Royal Performance is made in 68 sizes, starting from 195/45 R15 up to 285/50 R20.