Petlas Snowmaster W651 245/40 R17

Petlas Snowmaster W651 is a winter 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. 245/40 R17 is 60mm wider than the narrowest dimension (185) and 0mm narrower than the widest one (245). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (245mm), which results in 98mm sidewall height.