Bridgestone Turanza All Season 6 is a allround tyre made in total of 53 sizes, ranging from R16 to R16 - this particular dimension is R16, which means it fits to a 16 inch/406.4mm diameter wheel. 215/60 R16 is 30mm wider than the narrowest dimension (185) and 60mm narrower than the widest one (275). This tyre profile of 60 means the sidewall height of the tyre is 60% of the tyre width (215mm), which results in 129mm sidewall height. In 215/60 R16, there is only one possible speed index for Bridgestone Turanza All Season 6 - "V", which is good for speeds up to 240 km/h.