Nankang Comfort AS-1 195/40 R17

Nankang Comfort AS-1 is a summer tyre made in total of 28 sizes, ranging from R14 to R14 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 195/40 R17 is 40mm wider than the narrowest dimension (155) and 60mm narrower than the widest one (255). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (195mm), which results in 78mm sidewall height.