BFGoodrich Advantage is a summer tyre made in total of 146 sizes, ranging from R14 to R14 - this particular dimension is R14, which means it fits to a 14 inch/355.6mm diameter wheel. 185/70 R14 is 30mm wider than the narrowest dimension (155) and 70mm narrower than the widest one (255). This tyre profile of 70 means the sidewall height of the tyre is 70% of the tyre width (185mm), which results in 129.5mm sidewall height. In 185/70 R14, there is only one possible speed index for BFGoodrich Advantage - "T", which is good for speeds up to 190 km/h. In 185/70 R14, Advantage usually competes against ZIEX ZE310 ECORUN, which is a tyre from Falken with a rating of 72%, compared to 66% of the BFGoodrich in question.