BFGoodrich Advantage All Season is a allround tyre made in total of 40 sizes, ranging from R15 to R15 - this particular dimension is R15, which means it fits to a 15 inch/381mm diameter wheel. 185/65 R15 is 20mm wider than the narrowest dimension (165) and 70mm narrower than the widest one (255). This tyre profile of 65 means the sidewall height of the tyre is 65% of the tyre width (185mm), which results in 120.25mm sidewall height. In 185/65 R15, there is only one possible speed index for BFGoodrich Advantage All Season - "T", which is good for speeds up to 190 km/h. In 185/65 R15, Advantage All Season usually competes against Quadraxer 3, which is a tyre from Kleber with a rating of 87%, compared to 61% of the BFGoodrich in question.