Yokohama Advan Sport V105 is a summer tyre made in total of 122 sizes, ranging from R16 to R16 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 235/60 R18 is 40mm wider than the narrowest dimension (195) and 70mm narrower than the widest one (305). This tyre profile of 60 means the sidewall height of the tyre is 60% of the tyre width (235mm), which results in 141mm sidewall height. In 235/60 R18, there are 2 possible speed indexes for Yokohama Advan Sport V105 - "V","W", which are good for speeds up to 240, 270 km/h. In 235/60 R18, Advan Sport V105 usually competes against Ecsta PS71, which is a tyre from Kumho with a rating of 77%, compared to 34% of the Yokohama in question.