Gt Radial Sportactive 2 245/45 R17

Gt Radial Sportactive 2 is a tyre made in total of 18 sizes, ranging from R16 to R16 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 245/45 R17 is 30mm wider than the narrowest dimension (215) and 50mm narrower than the widest one (295). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (245mm), which results in 110.25mm sidewall height.