Bridgestone Exedra G721 is a winter tyre made in total of 6 sizes, ranging from R16 to R16 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. This tyre profile of 70 means the sidewall height of the tyre is 70% of the tyre width (130mm), which results in 91mm sidewall height. In , there is only one possible speed index for Bridgestone Exedra G721 - "H", which is good for speeds up to 210 km/h.