Pirelli CARRIER is a summer tyre made in total of 42 sizes, ranging from R14 to R14 - this particular dimension is R16, which means it fits to a 16 inch/406.4mm diameter wheel. 225/60 R16 is 60mm wider than the narrowest dimension (165) and -30mm narrower than the widest one (195). This tyre profile of 60 means the sidewall height of the tyre is 60% of the tyre width (225mm), which results in 135mm sidewall height. In 225/60 R16, there is only one possible speed index for Pirelli CARRIER - "T", which is good for speeds up to 190 km/h.