Nankang CROSS SEASONS AW-6 is a allround tyre made in total of 78 sizes, ranging from R13 to R13 - this particular dimension is R15, which means it fits to a 15 inch/381mm diameter wheel. 185/60 R15 is 30mm wider than the narrowest dimension (155) and 70mm narrower than the widest one (255). This tyre profile of 60 means the sidewall height of the tyre is 60% of the tyre width (185mm), which results in 111mm sidewall height. In 185/60 R15, there is only one possible speed index for Nankang CROSS SEASONS AW-6 - "H", which is good for speeds up to 210 km/h. In 185/60 R15, CROSS SEASONS AW-6 usually competes against Kinergy 4S2 H750, which is a tyre from Hankook with a rating of 89%, compared to 23% of the Nankang in question.