Bridgestone Turanza All Season 6 is a allround tyre made in total of 141 sizes, ranging from R16 to R16 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 255/40 R18 is 70mm wider than the narrowest dimension (185) and 20mm narrower than the widest one (275). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (255mm), which results in 102mm sidewall height. In
255/40 R18, Turanza All Season 6 usually competes against
CrossClimate 2, which is a tyre from
Michelin with a rating of 92%, compared to 92% of the
Bridgestone in question.