Kumho Ecowing ES31 is a summer tyre made in total of 61 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 40mm wider than the narrowest dimension (145) and 40mm narrower than the widest one (225). 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 are 2 possible speed indexes for Kumho Ecowing ES31 - "T","H", which are good for speeds up to 190, 210 km/h.
