Bridgestone Battlax T31 170/60 R17

Bridgestone Battlax T31 is a summer tyre made in total of 20 sizes, ranging from R17 to R17 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 170/60 R17 is 60mm wider than the narrowest dimension (110) and -50mm narrower than the widest one (120). This tyre profile of 60 means the sidewall height of the tyre is 60% of the tyre width (170mm), which results in 102mm sidewall height.