BFGoodrich Advantage is a summer tyre made in total of 146 sizes, ranging from R14 to R14 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 235/55 R17 is 80mm wider than the narrowest dimension (155) and 20mm narrower than the widest one (255). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (235mm), which results in 129.25mm sidewall height. In 235/55 R17, there is only one possible speed index for BFGoodrich Advantage - "W", which is good for speeds up to 270 km/h. In 235/55 R17, Advantage usually competes against ZIEX ZE310 ECORUN, which is a tyre from Falken with a rating of 75%, compared to 68% of the BFGoodrich in question.