Metzeler Sportec M9 RR 170/60 R17

Metzeler Sportec M9 RR is a summer tyre made in total of 14 sizes, ranging from R17 to R17 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 170/60 R17 is 60mm wider than the narrowest dimension (110) and 30mm narrower than the widest one (200). This tyre profile of 60 means the sidewall height of the tyre is 60% of the tyre width (170mm), which results in 102mm sidewall height.