Bridgestone Duravis All Season is a allround tyre made in total of 30 sizes, ranging from R15 to R15 - this particular dimension is R16, which means it fits to a 16 inch/406.4mm diameter wheel. 215/60 R16 is 20mm wider than the narrowest dimension (195) and 20mm narrower than the widest one (235). 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 Duravis All Season - "T", which is good for speeds up to 190 km/h. In 215/60 R16, Duravis All Season usually competes against CARRIER All Season, which is a tyre from Pirelli with a rating of 41%, compared to 41% of the Bridgestone in question.