Heidenau K 66 170/60 R17

Heidenau K 66 is a tyre made in total of 44 sizes, ranging from R13 to R13 - 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 -20mm narrower than the widest one (150). 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.