Pirelli Diablo Rosso III 240/45 R17

Pirelli Diablo Rosso III is a summer tyre made in total of 17 sizes, ranging from R17 to R17 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 240/45 R17 is 100mm wider than the narrowest dimension (140) and 0mm narrower than the widest one (240). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (240mm), which results in 108mm sidewall height.