Yokohama W.drive V902B is a winter tyre made in total of 15 sizes, ranging from R17 to R17 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 285/65 R17 is 40mm wider than the narrowest dimension (245) and -20mm narrower than the widest one (265). This tyre profile of 65 means the sidewall height of the tyre is 65% of the tyre width (285mm), which results in 185.25mm sidewall height. In 285/65 R17, there is only one possible speed index for Yokohama W.drive V902B - "H", which is good for speeds up to 210 km/h.