Goodride SA37 is a summer tyre made in total of 78 sizes, ranging from R15 to R15 - 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 30mm narrower than the widest one (285). 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, SA37 usually competes against
Sport SA-37, which is a tyre from
Westlake with a rating of 0%, compared to 0% of the
Goodride in question.
