Pirelli CARRIER is a summer tyre made in total of 40 sizes, ranging from R14 to R14 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 235/60 R17 is 70mm wider than the narrowest dimension (165) and -40mm narrower than the widest one (195). This tyre profile of 60 means the sidewall height of the tyre is 60% of the tyre width (235mm), which results in 141mm sidewall height. In 235/60 R17, there is only one possible speed index for Pirelli CARRIER - "R", which is good for speeds up to 170 km/h.