GT radial Sport Active is a summer tyre made in total of 18 sizes, ranging from R17 to R17 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 255/40 R17 is 50mm wider than the narrowest dimension (205) and 0mm narrower than the widest one (255). 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 R17, radial Sport Active usually competes against
Azenis FK510, which is a tyre from
Falken with a rating of 0%, compared to 0% of the
GT in question.
